| Abbreviation | Definition |
|---|---|
| FCPD | Fairfax County Police Department |
| FCPS | Fort Collins Police Services |
| FCR | Force Control Room |
| FCTO | Forensic Community Treatment Orders |
| FD | Fare Dodger |
| FDAB | Forensic Databases Advisory Board |
| FDB | Forensic Data Bank |
| FDLE | Florida Department of Law Enforcement |
| FDPD | Fort Dodge Police Department |
| FDPD | Forum Drive Police Department |
| FDS | Forensic Data Services |
| FDT | Forensic Drug Testing |
| FEC | Force Enquiry Centre |
| FED | Federal Reserve System |
| FEN | Force Enterprise Network |
| FEO | Firearms Enquiry Officer |
| FESA | Forensic Engineering Society of Australia |
| FETI | Forensic Experiential Trauma Interview |
| FFENQ | Foreign Force ENQuiry |
| FFL | Florida Forensic League |