All these codes can be found in the Police Quest 1 VGA Manual
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Go to http://www.whittyone.co.uk/policequest
for all your police quest needs
(Cheats, downloads, interfaces, codes, game maps and hints)
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Locker Code - 269 (The score it talks about is 26-9)
Phone number of Lt Morgan - 555-3738

Penal Codes
308 - Resisting Arrest
377 - Murder
363, 367 - Attempted Murder
322 - Kidnapping
399 - Armed Robbery
337 - Assault and battery
349(d)(1) - Assault and battery on a police officer
359 - Burglary
12876 - Possession of a controlled substance
12755 - Possession of cocaine 
12509 - Possession of a concealed weapon

Vehicle Codes
19221 - Stolen Vehicle
19227 - Driver's license not in possession
14304 - Driving with a suspended license
16310 - Hit and run
13301 - Failure to stop for a stop sign
21490 - Failure to stop for a red light
21650 - Driving too slow in the fast lane
22679 - Following too close
26504 - Exceeding the maximum speed limit
29211 - Reckless driving
21603 - Driving under the influence of intoxicants
44729 - Not in full control of faculties  

Radio Codes
10-1 Poor Radio Reception
10-2 Radio Reception good
10-4 Received message
10-6 Off the air - not available for call
10-8 In service
10-10 End of shift - off duty
10-15 Prisioner in custody
10-19 Return to office
10-20 Location
10-21 Use telephone
10-23 Standby
10-27 Subject check
10-29 Check for wants
10-35 Backup requested
11-41 Ambulance
11-44 Fatality
11-48 Furnish transportation
11-79 Injury traffic collision with ambulance responding
11-80 Traffic collision with major injury
11-81 Traffic collision with minor injury
11-82 Traffic collision, property damage only
11-83 Traffic collision, no details
11-84 Traffic control
11-85 Tow truck
11-99 Emergency, officer needs assistance, respond code-3