Private Detective License. (Original Application Package )

The original application package to become licensed as a Private Detective includes:

In order to apply for a Private Detective License, you must completely fill out each form within the attachment and forward the entire completed package along with a certified check or Money order in the amount of $550.00 and your business certificate or, if incorporated, your Articles of Organization from the Secretary of States Office to the Department of State Police Certification Unit, 485 Maple Street, Danvers, MA 01923.


Watch Guard Patrol Agency License. (Original Application Package )

The original application package to become licensed as a Watch Guard Patrol Agency includes:

In order to apply for a Watch Guard Patrol Agency License, you must completely fill out each form within the attachment and forward the entire completed package along with a certified check or Money order in the amount of $550.00 and your business certificate or, if incorporated, your Articles of Organization from the Secretary of States Office to the Department of State Police Certification Unit, 485 Maple Street, Danvers, MA 01923.



To check to see if someone is properly licensed and bonded please contact the Certification Unit directly at 978-538-6128. Please have the company name, resident manager or license number ready.

To purchase a list of all licensed Private Detective and/or Watch Guard Patrol Agencies please forward your request in writing to the Department of State Police Certification Unit, 485 Maple Street, Danvers, MA 01923 along with a certified check or money order made payable to the Commonwealth of Massachusetts in the amount of $57.00 for Private Detective or $12.00 for the Watch Guard Patrol Agency list. A Private Detective license enables the license holder to perform both Detective work as well as Watch Guard Patrol Agency/Security work. A Watch Guard Patrol agency license enables the license holder to perform strictly security work.