Guide To Police Scanning

Laws and police procedures vary from city to city and state to state. The information given here is of a general nature and is not intended in any way to replace the procedures and
recommendations of your law enforcement agency.

• 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