What aspect of police practices is enhanced by scientific research?

The aspect enhanced by scientific research is the improvement of methods based on statistical evidence. Engaging in scientific research allows law enforcement agencies to analyze data and apply findings to develop more effective policing strategies. For example, through statistical analysis, police can identify crime trends, allocate resources more efficiently, and assess the effectiveness of various policing methods or community programs. This evidence-based approach leads to practices that are not only more efficient but also more effective in addressing crime and enhancing community safety.

Other options do not align with the primary benefit derived from scientific research in police practices. Creating harsher sentencing guidelines is typically determined by legislative processes rather than scientific inquiry. Limiting community involvement runs counter to modern policing strategies that emphasize community engagement and partnership. Streamlining administrative procedures, while potentially beneficial, doesn't focus specifically on improving policing methods through empirical evidence and therefore isn’t the most relevant aspect enhanced by research in this context.