| Business | Phone |
| Federal Bureau-Investigation 901 Civic Center Dr W # 330, Santa Ana 92703 | (714) 542-8825 |
| Us Alcohol Tobacco & Firearms 200 W Santa Ana Blvd # 550, Santa Ana 92701 | (714) 246-8210 |
| Us Alcohol Tobacco & Firearms 600 W Santa Ana Blvd # 510, Santa Ana 92701 | (714) 246-8252 |
| Us Marshals Svc 715 W Santa Ana Blvd, Santa Ana 92701 | (714) 338-4610 |
| Us Marshals Svc 751 W Santa Ana Blvd, Santa Ana 92701 | (714) 836-2081 |
| Us Secret Svc 200 W Santa Ana Blvd # 500, Santa Ana 92701 | (714) 246-8257 |