“10 - ” Codes for Radio Communication

10-1 Receiving Poorly 10-2 Receiving Well (loud & clear) 10-3 Repeat Last Transmission 10-4 Acknowledgement 10-5 Stand-by 10-6 Busy 10-7 End of shift / out of service 10-8 Start of shift / in service 10-9 Repeat 10-10 Continuing Patrol 10-11 Location – Office 10-12 Phone Call required10-13 Weather & Road Conditions 10-14 Bomb Threat 10-16 Unauthorized Listeners Present 10-18 Intoxicated Person 10-19 Require Supervisory Assistance 10-20 What is your location? 10-21 Improper Radio Use 10-22 Require Police 10-26 Detaining Subject 10-30 Ready for Assignment 10-31 Assignment Complete 10-33 Emergency 10-36 Correct Time 10-38 Unit Ready for Clearance 10-42 Coffee Break 10-45 Death/Fatality 10-50 Accident with Injury 10-51 Tow Truck Needed 10-52 Ambulance Needed 10-53 Accident No Injuries 10-54 Fire Department Required 10-66 Subject Under Observation 10-70 Message for All Units 10-78 Need Assistance/ Require Back up 10-90 Alarm Response 10-92 Person in Custody 10-95 Person Believed Dangerous

These highlighted 10 codes are the most common used signals in day to day deployment for the Canadian Security Industry.