| Abbreviation | Definition |
|---|---|
| EC | European Commission |
| ECHO | Elkhart County Humane Obedience |
| ECHR | European Convention on Human Rights |
| ECPD | Eau Claire Police Department |
| ECPD | El Cajon Police Department |
| ECRT | Elder Crime Report Team |
| ECU | Economic Crimes Unit |
| ED | Emergency Department |
| EDC | Every Day Carry weapon |
| EDGE | Edmonton Drug and Gang Enforcement Unit |
| EDI | Enhanced Defense Intelligence |
| EDS | Extremely Dangerous Situation |
| EDU | Explosives Disposal Unit |
| EDW | Electronic Discharge Weapon |
| EEA | European Economic Area |
| EEPF | Eeyou Eenou Police Force |
| EFDD | Elcomsoft Forensic Disk Decryptor |
| EFN | Emerging Forensic Network |
| EG | Evidence Gatherer |
| EGPA | European Gay Police Association |