Reference
Checklist Phases
Investigation phases and checklist organization
Checklist Phases
Reference for investigation phases and how checklists are organized.
Phases Overview
| Phase | When | Focus |
|---|---|---|
| Initial Response | First minutes at scene | Safety, security, preservation |
| Scene Processing | During scene work | Evidence collection, documentation |
| Witness Canvass | Early investigation | Identifying and locating witnesses |
| Investigation | Ongoing | Following leads, analysis |
| Documentation | Throughout | Reports, records, filing |
| Closure | End of investigation | Prosecution prep, case closure |
Initial Response Phase
Typical items for First Officers:
| Item | Time Sensitivity | Policy Required |
|---|---|---|
| Ensure scene safety | Golden Hour | Yes |
| Check for signs of life | Golden Hour | Yes |
| Secure perimeter | Golden Hour | Yes |
| Notify dispatch | Golden Hour | Yes |
| Identify witnesses | Golden Hour | No |
| Begin scene log | Golden Hour | Yes |
| Notify Medical Examiner | First 24 Hours | Conditional |
| Notify detectives | Golden Hour | Yes |
Scene Processing Phase
Typical items for Detectives:
| Item | Time Sensitivity | Policy Required |
|---|---|---|
| Accept scene from First Officer | — | Yes |
| Walk-through documentation | — | Yes |
| Evidence collection | — | Yes |
| Photography/video | — | Yes |
| Sketch/diagram | — | No |
| Collect biological samples | — | Conditional |
Investigation Phase
| Item | Time Sensitivity | Policy Required |
|---|---|---|
| Witness interviews | First 24 Hours | No |
| Background checks | — | No |
| Surveillance review | — | No |
| Digital evidence requests | Varies by provider | No |
| Lab submissions | — | No |
| Suspect development | — | No |
Time Sensitivity Codes
| Code | Meaning |
|---|---|
| Golden Hour | Complete within 60 minutes of arrival |
| First 24 Hours | Complete within first day |
| Varies | Depends on external factors |
| — | No specific deadline |
The following shows how IronCase tracks time-sensitive items visually:
Time-Critical Actions
Case opened 45 minutes ago
Golden Hour→First 24h→First 48h
Secure crime scene perimeterGolden Hour
15m overdueCanvas for witnessesGolden Hour
23m leftRequest area search dataFirst 24h
180m leftComplete victimology workupFirst 48h
1200m leftRole-Based Checklists
Checklists are assigned to appropriate roles. Items are distributed based on who is responsible for each task:
Role-Based Checklist
Based on Geberth methodology
Secure scene perimeterFirst Officer
Identify potential witnessesFirst Officer
Conduct preliminary interviewDetective
Review evidence collectionSupervisor
Case Type Variations
Checklists adapt based on case type:
| Case Type | Additional Phases/Items |
|---|---|
| Homicide | Full Geberth methodology |
| Suspicious Death | Death determination items |
| Officer-Involved Shooting | OIS protocol items |
| SIDS/Infant Death | SIDS-specific items |
| Fatal Fire | Fire investigation items |