University of Maryland
From The RadioReference Wiki
10 Codes
UMAB Police use the Baltimore City 10-codes with only slight differences:
- 10-18 and 10-19 are reversed
- 10-77 is a P.R. Break
- 10-44 is a Lunch Break
- 10-40 is an Escort
Unit IDs
- Police and security operate on the same channel.
- Security units always have a 9 in front of their badge number (for example, a security officer's number is always 921 or 925)
- Police use their badge number with the shift number they are on.
- 10x6 Shift 1
- 6x2 Shift 2
- 2x10 Shift 3
- Depending which shift they are on, police are 121 or 221 or you may hear just the badge number without the shift.
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