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MARYLAND STATE POLICE RADIO CODES & SIGNALS:

10-0 Caution
10-1 Unable to copy
10-3 Stop transmitting
10-4 Acknowledgement (OK)
10-5 Relay
10-6 Busy, unless urgent
10-7 Out of service
10-8 In service,
10-9 Repeat
10-10 Fight in progress
10-11 Dog case
10-12 Stand-by (stop)
10-13 Weather -- road report
10-14 Prowler report
10-15 Civil disturbance
10-16 Domestic problem
10-17 Meet complainant
10-18 Quickly
10-19 Return to______
10-20 Location
10-21 Call _____ by telephone
10-22 Disregard
10-23 Arrived at scene
10-24 Assignment completed
10-25 Report in person (meet)
10-26 Detaining subject,
10-27 Driver's license information
10-28 Vehicle registration info.
10-29 Check for wanted
10-30 Unnecessary use of radio
10-31 Crime in progress
10-32 Man with gun
10-33 EMERGENCY
10-34 Riot
10-35 Major crime alert
10-36 Correct time
10-37 Investigate susp. vehicle
10-38 Stopping suspicious vehicle
10-39 Urgent - use light & siren
10-40 Silent run - no light/siren
10-41 Beginning tour of duty
10-42 Ending tour of duty
10-43 Information
10-44 Permission to leave
10-45 Animal carcass at
10-46 Assist motorist
10-47 Emergency road repair at
10-48 Traffic standard repair at
10-49 Traffic light out at ______
10-50 Accident (F, PI, PD)
10-51 Wrecker needed

10-52 Ambulance needed
10-53 Road blocked at ____
10-54 Livestock on highway
10-55 Intoxicated driver
10-56 Intoxicated pedestrian
10-57 Hit & Run (F, PI, PD)
10-58 Direct traffic
10-59 Convoy or escort
10-60 Squad in vicinity
10-61 Personnel in area
10-62 Reply to message
10-63 Prepare to make written copy
10-64 Message for local delivery
10-65 Net message assignment
10-66 Message cancellation
10-67 Clear for net message
10-68 Dispatch information
10-69 Message received
10-70 Fire alarm
10-71 Advise nature of fire
10-72 Report progress on fire
10-73 Smoke report
10-74 Negative
10-75 In contact with ______
10-76 Enroute
10-77 ETA
10-78 Need assistance
10-79 Notify coroner
10-80 Chase in progress
10-81 Breath test
10-82 Reserve lodging
10-83 Work school crossing at _____
10-84 If meeting _____ advise ETA
10-85 Delayed due to
10-86 Officer/operator on duty
10-87 Pick up/distribute checks
10-88 Present telephone # of ______
10-89 Bomb threat
10-90 Bank alarm at _________
10-91 Pick up prisoner/subject
10-92 Improperly parked vehicle
10-93 Blockade
10-94 Drag racing
10-95 Prisoner/subject in custody
10-96 Mental subject
10-97 Check (test) signal
10-98 Prison/jail break
10-99 Wanted/stolen indicated

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