| Abbreviation | Definition |
|---|---|
| FIRD | Forensic Interview Referral Document |
| FIRE | Faith, Intercession, Repentance, and Evangelism |
| FIRE | Forensic Incident Response Environment |
| FIRS | Forensic Investigation Research Station |
| FISH | Forensic Information System for Handwriting |
| FIST | Fingerprinting Insures Safe Tots |
| FIST | Free Individual Self-defence Training |
| FITF | Fire Investigation Task Force |
| FITF | Friends In The Force |
| FIU | Force Intelligence Unit |
| FJP | Federal Judicial Police |
| FLO | Firearms Liaison Officer |
| FLPD | Fort Lauderdale Police Department |
| FLPD | Fort Lee Police Department |
| FLS | Forensic Light Source |
| FLVS | Forensic, Litigation and Valuation Services |
| FMAS | Forensic Medical Advisory Service |
| FME | Forensic Medical Examiner |
| FMERSA | Forensic and Medical Examinations for Rape and Sexual Assault |
| FMERSA | Forensic Medical Examination for Rape and Sexual Assault |