Swedish National Forensic Centre 2017 â€‰
Swedish National Forensic Centre The Swedish National Forensic Centre, NFC, is an independent expert organization within the police authority with an overall responsibility for forensics. NFCâ€™s main task is to conduct forensic investigations and analyzes on behalf of the judicial authorities. Our mission is to integrate, consolidate and streamline the national forensic services to meet societyÂ´s need.
Table of Contents 04 A year focusing on completing cases 05 Samples of Our Work
Table of content 06 Organization
08 First CaseYears Development at NFC The at Glance 4 10 Quality Assurance and International Collaborations Organization 6 The Years – an Organization in Progress 8 11 First Samples ofAchievements Our Work Harmonization, Quality 9 12 Sections Assurance and International collaborations 9 16 Regional Laboratories Education 10 17 Hazardous Substances Performance of Forensic 11 18 Education Investigations and Analyzes 11 20 Evidence Evaluation Case Development at NFC 12 21 Research and Development What we do best 13 22 Evidence Scientific Production evaluation 13 DNA analysis
Analysis of new drugs
Chemical, biological, radiological, nuclear and explosive Digital forensics
Sections 15 Biology Section
Chemistry and Technology Section Drug Analysis Section
Information Technology Section Regional laboratories
Research and Development Scientific Articles and Reports
Publisher: Swedish National Forensic Centre (NFC) E-mail: email@example.com • www.nfc.polisen.se • Ref. A222.347/2018 Production: Communications Department at the Swedish Police • Photo: NFC • Print: Swedish Police
A year focusing on completing cases During 2017, NFC has continued to grow both in terms of staff and number of completed cases. The production of cases was high during the year and the production rate increased during 2017. In the autumn, output increased for each month and in December, in average 522 cases per workday were completed compared to the average of 444 completed cases for the entire year. We are not quite where we want to be yet, but weâ€™re hopefully on the right track. We still have a queue of old cases to manage, but now as the production increases it shows that it is possible to produce cases at a rate that will meet the demand. For a long time we have seen a trend that indicates that the more cases we complete - the more demand for our services seems to increase.
European Forensic Science Arena 2020. On April 7, a terrorist attack occured in Stockholm. We were, however, well prepared for the investigation work and could, for the first time, use crime scene documentation by 3D visualization for both investigative purposes and the trial. You will find more information about this on page 11. To conclude, I am proud when I look back at 2017 and recall all the great work we have put down and all the great things we have achieved while still struggling with challenges. Last, but not least, it is a pleasure to have been able to welcome many new colleagues to NFC. My thanks to all employees of the Swedish Police who have contributed greatly to our important everyday work.
Besides our focus on handling cases, we also have a task to conduct research and development in forensics, a work that is constantly in progress. During the year we have participated in several research projects, for example the EU Horizon 2020 funded VISAGE project. NFC has also established a Scientific Advisory Council to give scientific advice to managers and scientific staff, which you can read more about on next page. The Scientific Advisory Council emphasizes the importance of digital forensics. Crime scene investigations using 3D cameras, software that can identify faces, the list of new digital forensic methods can be made long. NFC also participates in the ENFSI EFSA2020 Task Force, in support of the implementation of the EU Council Conclusions on the Development and Harmonization of Forensic Activities in Europe, the
Lena KlasĂŠn, PhD Director, Swedish National Forensic Centre
Samples of Our Work
Founding of a Scientific Advisory Council In 2017 the NFC founded a scientific advisory council. The board consists of external experts from disciplines relevant to forensic science. The council
members are international experts in their respective field. The mission of the council is to provide scientific advice to the managers and scientific staff.
Explosives â€“ Bangers and Hand Grenades The number of cases involving explosives has doubled over a three year period. The cases include hand grenades, bangers and dynamite among others. The misuse of pyrotechnics has increased significantly, for example the use of the banger Cobra 8, which can cause a lot of damage. Cobra 8 may have similar effects as hand grenades.During 2017 NFC handled 35 cases involving hand grenades. The majority of the hand grenades were manufactured in former Yugoslavia.
Cases Involving Explosives 2012â€“2017 211 158 144
Other cases included the identification and analyzes of explosives, detonators, fuses and chemicals which can be used for making explosives together with analyzes of post blast samples. Dynamite is still the most common commercial explosive used by criminals in Sweden. Military explosives based on PETN are also utilized.
2012 2013 2014 2015 2016 2017
Organization NFC comprises the national forensic laboratory in Linköping and three regional forensic laboratories in Stockholm, Gothenburg and Malmö. Swedish Crime Scene Investigators (CSI) are employed at the forensic sections of the seven police regions. Limited laboratory activities – primarily the development of latent fingerprints – are also performed at these sections. Cases involving digital forensics is handled at NFC, at the Department of National Operations and at the forensic sections within the seven police regions.
Management Office Groups: - Administrative Service - Case Work Administration - Management Support
Information Technology Groups: - Computer Forensics - Questioned Documents - Forensic Image Analysis - Mobile and Electronics - Sensor Technology
Biology Groups: - Serious Crime 1 - Serious Crime 2 - Serious Crime 3 - DNA Extraction - Volume Crime - DNA Typing and DNA Database
Drug Analysis Groups: - Drugs 1 - Drugs 2 - Instrumental Analysis 1 - Instrumental Analysis 2
Chemistry and Technology Groups: - Environment, Flammables and Oil - Fingerprints 1 - Fingerprints 2 - Chemistry - Marks and Technical Fire - Firearms
NFC Syd Groups: - Fingerprints1 - Fingerprints 2 - Marks and Documentation
NFC Väst Groups: - Fingerprints - Marks and Documentation
NFC Stockholm Groups: - Fingerprints 1 - Fingerprints 2 - Marks and Documentation
The total number of forensic investigations and analyzes in all forensic areas, except forensic medicine, that was completed during 2017.
million euro in total budget (2017).
â€?Our mission is to be an impartial expert organization performing investigations in criminal cases for legal authorities. Our task is also to perform forensic research and development (R&D) as well as educate and inform on forensic issues. Our responsibility for the forensic process includes a responsibility to monitor, evaluate, harmonize and assure the quality of all forensic methods throughout the forensic process within the Police Authority.â€?
Confiscated drugs 2017
New uncontrolled drugs 1,9% New controlled drugs 2,3% GHB/GBL 0,2% LSD 0,3%
100 More than
Research and Development projects, activities and programs ran in 2017.
Amphetamine 11,9% Methamphetamine 0,2% Ecstacy 3,6%
Hashish 27,8% Medicines 22,8%
Doping substances 2,5% Spice 0,2% Opium 0,04% Kaht 0,1% Cocaine 7,5%
Heroin 1,4% Cannabis 17,1%
scientific publications were published during the year 2017.
hours were devoted to Research and Development, equivalent to 7.6% of the total working hours in 2017.
17 days was the average processing time in 2017 (50% of the cases) .
Case Development at NFC In 2017 NFC managed to complete more cases than the number of cases requested.
Incoming, completed and open cases, from the judicial authorities 2015* 2016* 2017 Diff. Diff. 2016-17 2016-17 % Incoming cases
5,200 6.8% 4,600
Reference samples 2015 2016 2017 Diff. Diff. 2016-17 2016-17 % Reference samples DNA
Cases from other principals
2015 2016 2017
Swedish Migration Agency 111,000
Total caseload in 2017
Completed cases in 2017
In addition to cases from the judicial authorities NFC also conducts forensic cases and analyzes on behalf of other authorities and clients, mainly the Swedish Migration Agency, the Customs and Security Office, but also other actors outside of Sweden. In addition, some 8,300 administrative cases were handled, such as requests for ECRIS (European Criminal Records Information Systems) and Passport Photo Requests. * In November 2016, the entire NFC started to use the same case management system. The definition of a case has varied in the different systems, so the figures from previous years have been recalculated to yield comparable numbers.
Registry NFC manages the Swedish DNA database and fingerprint database. There are three different databases for DNA profiles in Sweden: the trace database, the investigation database and the DNA database. During the year, Swedish police has been working to increase the number of samples in the database. The BR administration (criminal records) conducted file maintenance in 2017, which caused that the register did not increase at the expected rate. The fingerprint register has been undergoing rectification during 2017, after a review by the Data Inspection, hence the register did not increase at the expected rate.
2015 2016 2017
Diff. 2016-17 %
Persons in the DNA database
DNA profiles in the database
Hits between traces
*Persons in the fingerprint database
*Fingerprints in the database
Hits between traces and persons
* Due to manual handling, there is a difference between the number of fingerprints and persons in the database.
Processing Time 17 days was the average processing time in 2017, for cases recieved from the judicial authorities. Reference DNA samples and reference fingerprint samples not included. Processing time (50%)
Processing time Reference samples DNA
Processing time Reference samples fingerprint
Quality Assurance and International Collaborations Besides performing forensic investigations and analyzes, NFC also has a national responsibility to monitor, evaluate, harmonize and assure the quality of all forensic methods used within the Police. In 2015 NFC initiated an extensive program to harmonize and assure the quality of all forensic activities within the Police relating to methods, skills, case management, reporting and performance measurement. The goal is to achieve an efficient, consistent and accredited handling of forensic cases on a national level. To achieve this, a special program was initiated, a framework that holds together the underlying projects and activities. Harmonization of methods and competence in the various disciplines forms the basis of the accreditation, which should be completed by year-end 2019/2020.
International Collaborations NFC is an active member of European Network of Forensic Science Institutes â€“ ENFSI. The purpose of ENFSI is to share knowledge, exchange experiences and come to mutual agreements in the field of forensic science. ENFSI is recognized as an expert group in the field of forensic sciences. One of ENFSIâ€™s important tasks is to encourage all ENFSI laboratories to comply with best practice and international standards for quality and competence assurance. NFC participates in the ENFSI EFSA2020 Task Force, in support of the implementation of the EU Council Conclusions on the Development and Harmonization of Forensic Activities in Europe, the European Forensic Science Arena 2020 (EFSA2020).
Samples of Our Work
Unique 3D Model of the Terrorist Attack
In a unique 3D model, NFC has recreated the suspected terrorist’s drive with the truck along Drottninggatan. This is the first time ever a 3D model of this magnitude is used in a Swedish trial to reconstruct an event. The 1,063 meter long drive has been built up of 800 million pixels, reproduced with two laser sensors from 97 different positions. With a few millimeters error margin on the 3D model, NFC has been able to recreate large parts of Drottninggatan as well as putting the truck in motion with a few decimetres of accuracy. In the 3D model, the truck travels the route at the same speed as the investigation has concluded. It shows clearly how the driver swerves for ”concrete lions”, comes close to the house facade and then drives straight into Åhléns City. The 3D model makes it possible to show the truck’s journey from different views. Together with the investigation, three different views were identified from above, the driver’s view from the inside and a witness’s view 20 meters in front of the truck.
Watch the film: www.nfc.polisen.se
Sensor Technology Crime scene documentation is a field in which NFC is currently increasing its efforts as part of its new role within the police organization. During the last year 3D laser scanning and visualizing in 3D has been applied successfully in case work. It has been used to enable the possibility to walk around at the crime scene, to restore the scene and to reconstruct well known movements. A case where sensor technology has been applied is the terror attack in Stockholm. The next step in the development is to use virtual reality (VR) which enables a person to virtually visit the scene of the crime in a natural manner. In an ongoing project the possibility to use VR instead of letting witnesses visit the crime scene is evaluated. VR will also play an important role for training and education.
Biology Section Completed cases: 17,500 DNA cases, approximately 8,200 of these were serious crime cases. 30,500 Reference samples DNA Employees: 101 (December 2017)
The Swedish DNA Database The Swedish DNA database expands and now contains DNA profiles from 160,000 convicted offenders and suspects, and 35,000 profiles from crime scene samples in unsolved crimes.
The mission of the Biology Section is to perform human biological trace search, identification, recovery and subsequent DNA analyses, interpretation of results and reporting. Our work also includes managing the Swedish DNA database. The caseload continues to increase and we recruit more staff and implement process improvements to meet the demand. We are also proud of an active R&D culture that enables us to further develop our operation.
During 2017, 4,700 matches were reported from the national DNA database. The process of handling reference saliva samples and database matches is highly automated. From the day a reference sample arrives at NFC it takes about four days until the DNA-profile is included in the DNA database and any match is reported. Sweden is currently operational with 19 countries under the so called PrĂźm decision. During 2017 4,800 PrĂźm DNA matches were reported.
Chemistry and Technology Section Completed cases: 7,200 Employees: 104 (December 2017) The Chemistry and Technology Section mainly carries out different types of comparisons, such as fingerprints, fibers, shoe prints, tires, tools, explosives, paints, glass and bullets.
Fingerprint During 2017 the influx of fingerprint cases continued to increase with approximately 20 % in fingerprint development and 14 % in fingerprint identification compared to 2016. To be able to handle this situation a great effort to increase the efficiency in the workflow was made. During the year the fingerprint groups have worked intensively with the harmonization of the fingerprint procedures throughout the entire Swedish Police Authority. Toolmarks and traces The shoeprint area was in focus 2017 due to the
finalizing of the harmonization project in combination with the feasibility evaluation of a new national database. In the fields of physical match and tool marks there has been an increasing number of examinations of drug packaging. These cases usually contain a large number of materials and are very complex. In order to meet the work load we have recruited more employees and we have developed a long term strategic plan.
Firearms During 2017 shooting incidents in Sweden reached the highest level ever in Sweden. Approximately 320 confirmed shootings 2017 means 100 percent more shooting cases in only a few years. The number of seized firearms increases but does not equal the number of shooting cases. The harmonization process is focused on crime scene routines and a standardized firearms protocol. Every year, since 2013, the firearms group has recruited group members to meet the work load.
Drug Analysis Section Completed cases: 46,100 Employees: 77 (December 2017) The principal role of the Drug Analysis Section is to perform analyses, both qualitatively and quantitatively, of material suspected to contain restricted substances in four categories; narcotics, goods dangerous to health, doping substances and medicines. Cannabis and cannabis-related products (such as hashish) account for around 45% of the cases which are handled by this section, followed by medical/ doping substances with 25%. In recent years there has been an increase of confiscated cannabis resin in relation to confiscated marijuana The section also carries out profiling analyzes of amphetamine, hashish, heroin and cocaine (in collaboration with Denmark) in order to determine sample origin and, if possible, distribution patterns both nationally and internationally. The section addresses approximately 100 cases of poisoning every year, by analyses of food and drink products in connection with cases involving an unknown cause of death.The section also analyzes illegally produced alcohol.
Analysis of new drugs Designer drugs are substances which have a structure similar to narcotic compounds but have been modified to circumvent existing drug laws. At NFC structure determination of these new synthetic drugs is performed with nuclear magnetic resonance (NMR) techniques. NMR is a powerful analytical technique that provides important structural information about a molecule. In structural elucidations, this information is used in combination with other analytical techniques, which makes it possible to determine the structure of an unknown substance. Throughout 2016 we performed 57 structural investigations and around 47 in 2017. This, and the fact that the NFC is one of the laboratories that reports the largest number of new substances to the EMCDDA, the European centre for the collection of data and statistics on drugs, makes us
one of the leading laboratories in Europe in this field. The decrease in the number of structural investigations in Sweden follows the trend in Europe regarding new drugs.
Information Technology Section Completed cases: 2.600 Employees: 67 (December 2017) At the Information Technology section we work with information carriers of all types, from examinations of writing, documents and banknotes to technical examination of data, sound and images.
Computer Forensics In the field of computer forensics NFC carries out acquisition of information that will be used in complex analysis, or where the storage media is corrupted and therefore needs to be repaired in order for data to be accessible. Data analysis includes complex investigations where the questions are complex and/or the data volume is very large. This places high demands on the equipment in the form of servers for processing data and storage space. Mobile Phone Forensics The activities in the field of mobile phone forensics are mainly focused on acquisition and interpreting data from heavily damaged or locked mobile phones. These types of cases are still increasing. The work requires expertise on various phone models and how they can be investigated. Almost all mobile phone models must be handled in their own way. Acquisition is often done through so-called chip-off, i.e. directly from a desoldered memory chip. It is necessary to have a variety of tools to perform these investigations. A collaborative project between different competencies and actors has been launched to counteract the growing problems of extracting information from mobile devices.
tion obtained from video can be used to shed light on spatial and temporal relations between other evidence objects. This can also be used to direct investigation efforts by clarifying the circumstances surrounding the commission of a crime. The most frequent case work includes image comparisons, height measurement in images, camera identification based on PRNU, recovery of image and video files, authenticity, audio enhancement and voice comparisons. One project during the year has focused on automatic classification of recovered images as valid or invalid by using convolutional neural network. The new method outperformed the others.
Questioned Documents Even though our daily lives are becoming more digitized, the number of cases including banknotes, ID documents and handwriting are increasing. Questioned document examination is often important to tie a person to a crime. A questioned document can for instance be a letter, notes, driverâ€™s license or other document whose authenticity is disputed. During the year, our international commitment has been expanded and involves both projects and educational efforts. The experiences made have been nationally applied.
Multimedia Forensics Due to the high availability of mobile devices and increased deployment of camera based surveillance systems; video evidence is becoming increasingly important in the investigation of many crimes. Video evidence can often give clues about activities, places and persons/objects of interest that many other types of evidence cannot. Thus, informa-
Regional Laboratories NFC comprises three regional laboratories situated in Stockholm, Malmö and Gothenburg. The principal operations carried out at these sites incorporate analyzing traces secured and collected by CSI´s and other police officers at crime scenes within their respective region. This may for example imply development and identification of fingerprints, analyses of mechanical traces (trace evidence), questioned documents and shoe prints, investigation of fire arms as well as photographing of traces and video documentation.
NFC Stockholm Completed cases: 4,000* (2017) Employees: 45 (Dec. 2017) In addition to their regular cases, NFC Stockholm also carried out 22,000 cases from the Swedish Migration Board regarding search of asylum seekers fingerprints during 2017. NFC Stockholm consists of three groups; two Fingerprint Groups and a Marks and Documentation Group.
NFC Syd Completed cases: 4,700* (2017) Employees: 35 (Dec. 2016) NFC Syd consists of three groups; two Fingerprint Groups and a Marks and Documentation Group.
NFC Väst Completed cases: 4,000* (2017) Employees: 22 (Dec. 2016) NFC Väst consists of two groups; a Fingerprint Group and a Marks and Documentation Group. * In November 2016, the entire NFC started to use the same case management system. The definition of a case has varied in the different systems, therefore the figures of 2017 are not comparable to previous years.
NFC participates in different activities aiming to improve the preparedness, operational capacity and competence with regard to CBRNE (chemical, biological, radiological, nuclear and explosive substances) and crisis management. This includes training together with other agencies in the sampling and handling of hazardous CBRNE contaminated forensic materials as well as organizing discussion seminars which focus on complex scenarios with CBRNE substances. NFC also gives presentations on the importance of forensic awareness to agencies and actors not normally involved in criminal cases, and presentations at international meetings and seminars about for example the collaboration between Swedish actors in cases of CBRNE incidents.
Education NFC organizes courses mainly for the Swedish Police, but also for other members of the judicial system. New this year is that we also educated lawyers. Some of the educational activities at NFC for the Swedish Police have consisted of: • Education of crime scene investigators (CSI:s) • Blood stain pattern analysis – advanced level • Crime scene analysis and reporting – continued education • Detection of falsified documents – advanced level • Fingerprint comparison • Digital forensics • Forensic awareness
Courses for Other Judicial Agencies NFC’s aim is to meet the needs of education in the field of forensics for different groups in the justice system. The Swedish Prosecutors Authority and the Swedish National Court request courses at several different levels from NFC. Passing these courses is mandatory for becoming a prosecutor or a judge. The topics of the courses are forensic investigations, how to interpret forensic results and how to use them as evidence in court.
Evidence Evaluation NFC has worked on the development and application of probabilistic interpretation and evaluation in forensics for over 20 years. NFC is one of the leading laboratories in Europe in this field. We have developed a unified scale of conclusions based on likelihood ratios that are applied to all casework in Linkรถping that involve evaluative statements. The unified scale is now being introduced nationwide as part of the harmonization process. We are continuously developing methods for increasing the precision of estimated likelihood ratios for particular evidence types. This work involves cooperation with forensic and academic institutions across Europe. We have developed a framework for the interpretation of findings at the crime scene, with the purpose of enhancing CSI reporting. This frame-work has already been implemented at several forensic units and there is also an international interest. We also have research collaboration with faculties of law.
Research and Development In 2017 R&D activities at NFC comprised more than 100 projects, activities, and programs, corresponding to 7.6% of the total annual hours. Most projects were focused on development and implementation of new methods. Major R&D activities were undertaken in the following areas: digital forensics, imaging and image analysis, DNA analysis, analysis of new drugs (“designer drugs”), evidence evaluation and hazardous substances (CBRNE). Research was also conducted on “big data”, sensors and 3D-imaging. Sixteen peer-reviewed papers and one doctoral thesis were published during the year and eight conference abstracts were submitted. The newly formed scientific advisory council, consisting of external researchers, many from abroad, met at NFC and delivered a first report with advice for the future.
EU Horizon 2020 funded VISAGE Project NFC participates in the EU Horizon 2020 funded VISAGE Project. The project will bring together forensic genetic researchers and practitioners, statistical geneticists and social scientists in a new initiative, the VISible Attributes Through GEnomics (VISAGE). The Consortium consists of 13 partners from academic, police, and legal institutions from eight European countries. The research mission: Overcoming the limitation of current forensic DNA analysis by broadening DNA evidence for investigative intelligence.
Doctoral Thesis In December 2017 Ronny Hedell, NFC defended his doctoral thesis “Bayesian inference for detection problems in biology” at Chalmers University of Technology. The abstract of the thesis is reproduced below, with permission from the author. This thesis is about different kinds of detection problems in biology: detection of DNA sequences in crime scene samples, detection of harmful bacteria in feed and food stuff and detection of epidemical diseases in animal populations. In each case, biological data is produced or collected in order to determine which DNA sequences, bacteria types or diseases are present, if any. However, the state of nature will often remain uncertain due to limited amounts of samples, low quality samples and imperfect methods for detection and classification. For correct and efficient interpretation of such data it is therefore often necessary to use statistical methods, taking the different sources of uncertainty into account. Several Bayesian models for analysis of such data, for determining the performance of detection methods, and for deciding on the optimal analysis procedure are developed and implemented. In paper I of this thesis it is investigated how the quality in forensic DNA profiles, such as allele dropout rates, changes with different analysis settings, and how the results depend on features in the DNA sample, such as the DNA concentration and marker type. Regression models are developed and the better analysis setting is determined. In paper II Bayesian decision theory is used to determine the optimal forensic DNA analysis procedure, after the DNA concentration and level of degradation in the sample have been estimated. It is assumed the alternatives for DNA analysis are 1) using a standard assay, 2) using the standard assay and a complementary assay,
or 3) the analysis is cancelled. In paper III detection models for bacteria are developed. It is shown how heterogeneous experimental data can be used to learn about the sensitivity of detection methods for specific bacteria types, such as Bacillus anthracis. As exemplified in the paper, such results are useful e.g. when evaluating negative analysis results. Finally, in paper IV a Bayesian method for early detection of disease outbreaks in animal populations is developed and implemented. Based on reported neurological syndromes in horses, connected e.g. with the West Nile Virus, the probability of an outbreak is computed using a Gibbs sampling procedure.
R&D in digital forensics The creation of a national node at NFC for R&D in digital forensics is underway in collaboration with the Police Cybercrime Centre, universities, government bodies and spanning industry partners. Applications for funding joint research projects have been submitted to Horizon 2020, amongst others. The Horizon 2020 project ‘ASGARD’ is ongoing and project PERSONA, concerning contactless biometry , has been recently approved. The NFC also participates in national initiatives, e.g. the creation of a regional, largescale and long-term national and international collaborative environment for data analysis and visualization (Visual Sweden).
Scientific Production Doctoral Thesis Bayesian inference for detection problems in biology R. Hedell. Doctoral Thesis. Chalmers University of Technology, 2017; number 4333.
Journal Papers ENFSI collaborative testing programme for fingermarks: past experiences and future perspectives Mattei, J. Fish, M. Hilgert, T. Lövby, M. Svensson m.fl. Foensic Science International, Online 170327 Examining the weathering susceptibility of light biomarkers Malmborg, J. Environmental Forensics. Accepted 170407. The 2015 ENFSI Fingerprint Working Group testing programme. Mattei, J. Fish, M. Hilgert, T. Lövby, M. Svensson m.fl. Forensic Science International. Accepted 2017. RapidHIT for the purpose of stain analyses – an interrupted implementation S. Boiso, E. Dalin, H. Seidlitz, M. Sidstedt,E. Trygg, J. Hedman, R. Ansell. Forensic Science International Genetics, Supplement Series 2017;6:e589-e590. Assessing the GeneRead SNP panel for analysis of low-template and PCR-inhibitory samples M. Sidstedt, I. Grandell, S. Boiso, M. Sanga, H. Green, J. Hedman, A. Tillmar. Forensic Science International: Genetics Supplement Series 2017; 6: e267-e269. An inter-laboratory comparison on transfer, persistence and recovery of DNA from cable ties K. Steensma, R. Ansell, L. Clarisse, E. Connolly, A.D. Kloosterman, L.G. McKenna, R.A.H. van Oorschot, B. Kokshoorn. Forensic Science International: Genetics 2017;31:95-104. Accurate digital PCR quantification of challenging samples applying inhibitor-tolerant DNA polymerases M. Sidstedt, E.L. Romsos, R. Hedell, R. Ansell, C.R. Steffen, P.M. Vallone, P. Rådström, J. Hedman. Analytical Chemistry, 2017;89:1642-1649. Results of an inter and intra laboratory exercise on the assessment of complex autosomal DNA profiles C.C.G. Benschop, E. Connolly, R. Ansell, B. Kokshoorn. Science & Justice 2017;57:21-27. Detection probability models for bacteria, and how to obtain them from heterogeneous spiking data. An application to Bacillus anthracis R. Hedell, O. Stephansson, P. Mostad, G. Andersson. International Journal of Food Microbiology, 2017;241:78-88. Blending DNA binding dyes to improve detection in real-time PCR L. Jansson, M. Koliana, M. Sidstedt, J. Hedman. Biotechnology Reports 2017; 14: 34-37. Overcoming sodium dodecyl sulfate induced PCR inhibition L. Boiso, J. Hedman. Forensic Science International: Genetics 2017; 29: e16–e18. Improved detection of Norovirus and Hepatitis A virus in surface water by applying pre-PCR processing E. Borgmästars, M. Jazi, S. Persson, L. Jansson, P. Rådström, M. Simonsson, J. Hedman, R. Eriksson. Food and Environmental Virology 2017; 9: 395-405.
Determining the optimal forensic DNA analysis procedure following investigation of sample quality R. Hedell, J. Hedman, P. Mostad. International Journal of Legal Medicine 2017; Epub ahead of print. doi: 10.1007/s00414017-1635-1. The Roles of Participants’ Differing Background Information in the Evaluation of Evidence Aitken, C., Nordgaard, A. Journal of Forensic Sciences, Online 171201. Blood trace detection using a hyperspectral sensor based on a linear variable filer Lundberg, M., Rattfalt, S., Gustavsson, D., Bergstrom, D 2017. Conference paper: Swedish Symposium on Image Analysis, Linkoping, Sweden. Online. Crime scene documentation in 3D Larsson, H., Rattfalt, S., Lundberg, M., Mellstrom, J., Brorsson Lathen, K. 2017. Conference paper: Swedish Symposium on Image Analysis, Linkoping, Sweden. Online.
Conference Contributions RapidHIT for the purpose of stain analyses – an interrupted implementation S. Boiso, E. Dalin, H. Seidlitz, M. Sidstedt, E. Trygg, J. Hedman, R. Ansell. Abstract, 27th Congress of the International Society for Forensic Genetics (ISFG), Seoul, Korea, 2017, pp 286. Assessment of the transfer, prevalence, persistence and recovery of DNA traces from worn upper garments: results from an inter-laboratory study B. Szkuta, R. Ansell, L. Boiso, E. Connolly, A.D. Kloosterman, B. Kokshoorn, L.G. McKenna, K. Steensma, R.A.H. van Oorschot. Abstract, 27th Congress of the International Society for Forensic Genetics (ISFG), Seoul, Korea, 2017, pp 212213. Digital PCR inhibition mechanisms using standardized inhibitors representing soil and blood matrices M. Sidstedt, E.L. Romsos, R. Hedell, C.R. Steffen, P.M. Vallone, P. Rådström, J. Hedman. Abstract/Oral presentation (Sidstedt, M.), qPCR, dPCR & NGS 2017, Munich, Germany, 2017. Validation of PCR-based forensic DNA analysis methods J. Hedman, M. Lavander, P. Rådström. Abstract/Oral presentation (Hedman, J), Eurachem workshop on Uncertainty in Qualitative and Quantitative Analysis, Nicosia, Cyprus, 2017. Evaluation of the Promega Casework Direct kit for DNA extraction of crime scene traces Y. Akel, J. Hedman. Abstract/Oral presentation (Hedman, J), 18th Promega European Forensic DNA Working Group Meeting, Innsbruck, Austria, 2017. Assessing the GeneRead invividual identity SNP panel for analysis of low-template and PCR-inhibitory samples M. Sidstedt, I. Grandell, S. Boiso, M. Sanga, H. Green, J. Hedman, A. Tillmar. Abstract, 27th Congress of the International Society for Forensic Genetics (ISFG), Seoul, Korea, 2017, P01-5. Classification of percentages in seizures of narcotic material Nordgaard, A. 10th International Conference on Forensic Inference and Statistics. Collaboration between Swedish actors in CBRN incidents Abstract, One day one Topic Seminar C. Vahlberg, H. Bergstedt. Forensic Awareness Building around CBRNE Incidents, Bryssel, Oktober 2017
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Facts and figures about the business at Swedish National Forensic Centre 2017.