Research Proposal. I am doing a research proposal for school. I have to write a proposal on some aspect in criminal justice/ law enforcement that has not already been studied numerous times.. Assignment 5 Final RESEARCH PROPOSAL. I have to propose a research in criminal justice and I have my topic, which is "Guns and Their Relationship to Crime" and I need help understanding the difference between a hypothesis and a null hypothesis.. 100+ Criminal Justice Research Topics. 539.215.721.4.. Issues in Criminal Justice and/or Law enforcement that has not been studied. Best Criminal Justice Research Paper Topics 2018 Research Proposal Question. CJS4030 Criminal Justice Research.1) I have some interest in criminal psychology. My basic idea is that no one is essentially born "bad" nor is there a gene for evil and the criminal mindset is thus the result of traumatic experiences and/or faulty parenting.. Ismophobia and social stereotypi