Investigator Resource Center
The premier online resource for detectives and investigators — organized by discipline, built by practitioners, and updated to reflect current law and best practice.
In Development
Investigative Guides
Step-by-step procedural guides for specific investigative tasks
In Development
Case Studies
Annotated real-world cases with methodology and outcome analysis
In Development
Legal References
Case law summaries, warrant templates, and statutory references
In Development
Technology Resources
Tool guides, software comparisons, and digital evidence protocols
Legal & Professional Disclaimer: CommunityPolicing.com provides educational information for law enforcement professionals and criminal justice students. Content does not constitute legal advice, agency policy, or a substitute for consultation with an agency's legal counsel, prosecutor, training authority, or current controlling law. Laws, court decisions, regulations, and agency policies change over time. Users should independently verify legal authority applicable to their jurisdiction before taking official action.
Browse by Discipline
Resources organized the way investigators work
Select a discipline to explore the guides, case studies, legal references, and training resources available for that investigative area.
Homicide Investigation
From scene response to case closure
Comprehensive resources for homicide investigators — covering scene management, victimology, suspect development, interview strategy, and case presentation. Includes cold case methodology and clearance rate improvement frameworks.
Available Resources
- Scene documentation and evidence recovery protocols
- Victimology and lifestyle risk assessment
- Suspect development and elimination matrices
- Interview strategy for homicide witnesses
- Cold case review methodology (NCMEC/NamUs integration)
- Case presentation for prosecution
Key Topics
Who It's For
Built for investigators at every level
New Detectives
Foundational guides and structured resources for officers transitioning into investigative assignments — covering core methodology, documentation, and case management.
Experienced Investigators
Advanced resources, legal updates, and specialized discipline content for seasoned detectives looking to deepen expertise or expand into new investigative areas.
Investigative Supervisors
Case review frameworks, quality control checklists, and leadership resources for detectives and sergeants managing investigative units.
Cold Case Units
Dedicated cold case review methodology, NamUs integration guides, and resources for applying modern forensic tools to historical cases.
Digital Evidence Practitioners
First responder protocols, forensic tool guidance, and legal admissibility resources for investigators working with electronic and digital evidence.
Multi-Jurisdictional Task Forces
Information sharing frameworks, fusion center coordination guides, and resources for investigators working across agency and jurisdictional boundaries.
Contribute to the Investigator Resource Center
The IRC is built by practitioners, for practitioners. If you have investigative guides, case studies, legal analysis, or training materials you'd like to contribute, we want to hear from you. All submissions are reviewed by our editorial team before publication.
Submit a contributionAccess the full Investigator Resource Center
Create a free account to access investigative guides, case studies, legal updates, and discipline-specific training resources.