GUIDE TO POLICE SCANNING
APCO 10-CODES
10-1 Signal Weak 10-21 Call(_____) by Phone
10-2 Signal Good 10-22 Disregard
10-3 Stop Transmitting 10-23 Arrived at Scene
10-4 Affirmative (OK) 10-24 Assignment Completed
10-5 Relay (TO) 10-25 Report to (Meet)
10-6 Busy 10-26 Estimated Time of Arrival
10-7 Out of Service 10-27 License/Permit Information
10-8 In Service 10-28 Ownership Information
10-9 Say Again (Repeat) 10-29 Records Check
10-10 Negative 10-30 Danger/Caution
10-11 ______On Duty 10-31 Pick Up
10-12 Stand By (Stop) 10-32 ___Units Needed (Specify)
10-13 Existing Conditions 10-33 Help Me Quick (Emergency)
10-14 Message/Information 10-34 Time
10-15 Message Delivered 10-35 Reserved
10-16 Reply To Message 10-36 Reserved
10-17 Enroute 10-37 Reserved
10-18 Urgent (Quickly) 10-38 Reserved
10-19 (In) Contact 10-39 Reserved
10-20 Location
Agencies may designate and use 10-40 and above to suit their own
needs.
DUTIES OF LAW ENFORCEMENT OFFICERS
A State Trooper, Deputy Sheriff, or Police Officer may be
required to perform many duties including directing traffic,
assisting stranded motorists, stopping violators for routine and
non-routine violations, responding to alarms, chasing suspects on
foot, investigating traffic accidents, investigating industrial
and home accidents, making felony and misdemeanor arrests,
responding to vicious animal calls and complaints, checking
buildings for break-ins, interviewing suspects and victims,
testifying in court, executing search and arrest warrants, and
more. Most State Police agencies spend more time investigating
traffic accidents and enforcing traffic laws, while police
departments spend more time investigating non-traffic related
criminal activity and other calls for assistance. Police
departments do investigate their share of traffic accidents,
however. They are usually responsible for accidents occurring
within their jurisdiction. State police agencies may take on more
traditional police duties also, depending upon their agency,
location, etc.
TABLE of FREQUENCIES
FEDERAL BUREAU OF INVESTIGATION
163.8375/167.600
167.2375
167.4875
167.5625
DRUG ENFORCEMENT AGENCY
418.625/416.050 418.900/416.325 418.750
418.675 418.825/415.600 418.950/416.200
418.975/417.025 418.975
U.S. CUSTOMS SERVICE
165.2375/166.4375 165.2375 166.4625
165.7375 166.4625/166.5875 162.825
U.S. SECRET SERVICE
32.23 Able 166.5125 Alpha 165.7875 Baker
165.375 Charlie 169.925 Delta 407.850 Echo
415.700 Fox 166.400 Golf 166.2125 Hotel
407.925 India 170.000 Juliet 167.825 Kilo
168.7875 Lima 165.2125 Mike 167.025 November
166.400 Papa 164.8875 Oscar 166.700 Quebec
166.400 Romeo 166.5125 Sierra 164.650 Tango
361.6 Uniform 164.100 Victor 167.025 Whiskey
166.4625 Xray 162.6875 Yankee 171.2875 Zulu
415.675 Black 414.850 Brown 414.950 Orange
414.975 Red 414.650 Silver 415.875 Violet
414.675 Yellow 46.75 46.70 46.80
165.850
INTERNAL REVENUE SERVICE
165.950/167.000 167.000 165.950
166.000/167.100 166.000 165.4625/166.5875
166.4625 418.225/414.7 418.225
418.175