Investigation and Security Services

**Exclusions/References:** - Units mainly engaged in - (a) providing police services are included in Class 7711 Police Services; - (b) selling security systems such as locking devices, safes and vaults, without installation or maintenance services, are included in the appropriate classes of Division G Retail Trade; - (c) providing key cutting/duplication services are included in Class 9499 Other Repair and Maintenance n.e.c.; and - (d) installing alarms are included in Class 3234 Fire and Security Alarm Installation Services. **Primary Activities:** - Alarm monitoring service - Armoured car service - Body guard service - Burglary protection service - Detective agency service - Enquiry agency service - Locksmith service - Night watchman service - Protection service - Security alarm monitoring service - Security guard service