What does it cost to hire an Idaho private investigator?

Fees in the northwest typically run from $45.00 to $75.00 per hour plus mileage and expenses for private investigator services in Boise, Idaho, which also can vary by agency. Some Boise detective agencies also take a retainer up front and ask you to sign a contract. Custer Agency, in most cases, requires a retainer for private investigator services.