Your locker in the police station's locker room contains several of the items and equipment you'll need to do your job. The locker combination (originally hidden in the Police Quest 3 manual) is 7-7-6.
Since this IS a police simulation, you'll have to book offenders on various charges when it comes time to throw 'em in the slammer, or write them a ticket (using your police cruiser's onboard computer). Either way, you'll be prompted to enter the appropriate violation code to properly book/ticket the offender. Using the following list of violations, look up the charge that applies to the perp in question, and enter it into the provided keypad.
VEHICLE CODES
10851 - Stolen Vehicle
12951 - Driver's License Not In Posession
14601 - Driving With A Suspended License
20002 - Hit And Run
21450 - Failure To Stop For A Stop Sign
21453 - Failure To Stop For A Red Light
21654 - Driving Too Slow In The Fast Lane
21703 - Following Too Closely
22349 - Exceeding The Maximum Speed Limit
23103 - Reckless Driving
23152 - Driving Under The Influence Of Intoxicants
28002 - Evading Arrest
05150 - Not In Full Control Of Faculties
PENAL CODES
148 - Resisting Arrest
187 - Murder
664,187 - Attempted Murder
207 - Kidnapping
211 - Armed Robbery
242 - Assault And Battery
245(d)(1) - Assault And Battery On A Police Officer
459 - Burglary
11350 - Possession Of A Controlled Substance
11351 - Possession Of Cocaine
12025 - Possession Of A Concealed Weapon