The New Jersey Memorandum for Advanced Authorization for Investigative, Expert or other Services (also known as the NCAA) is a document that is used by the state of New Jersey to grant authorization for investigative, expert or other services. This form is typically used by law enforcement agencies to obtain permission to hire outside services such as private investigators, forensic experts, consulting services, or any other service related to an investigation. The NCAA must be signed by the Head of the Law Enforcement Agency or their designated representative. The different types of New Jersey Memorandum for Advanced Authorization for Investigative, Expert or other Services are: 1. Private Investigator Authorization 2. Expert Witness Authorization 3. Consulting Services Authorization 4. Forensic Services Authorization 5. Other Investigative Services Authorization.