North American Product Classification System (NAPCS) Canada [Provisional Version 0.1]

• 561 - Administrative and support services
• 561025 - Investigation and security services
• 561025.1 - Investigation and security services
• 561025.1.1 - Investigation services

561025.1.1.1 - Domestic and family investigation services

Conducting investigations to provide information about domestic and family events, such as missing persons and runaways, child custody disputes, premarital background checks, and infidelity. Techniques such as surveillance, background checks, computer searches, fingerprinting, lie detector services and interviews may be used to gather the information.