10 21a Police Code: Meaning, Example and Usage

10 21a police code means:

• Advise home I will return at [ETA]

Police Code	Meaning	When to Use	Example in Action
10-21a	Advise home I will return at [ETA]	Used by officers to inform family or household members about their expected return time.	Officer: “Dispatch, 10-21a, advise home I will return at 22:30.” Dispatch: “Copy that, Unit 12. 10-21a message sent to home.”

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What Does 10 21a Police Code Mean?

In police law enforcement communications, 10 21a police code stands for Advise home I will return at [ETA]

It’s typically used when officers are wrapping up their duties or shifting to another location and want to communicate when they will be available again.

When Is Police Code 10-21a Used?

Police officers use Police Code 10-21a in the following scenarios:

• To inform their family or household members of their return time after a shift.
• When they need to update their family on a change in their expected time home due to ongoing duties.
• To help coordinate with family members when their return time is important.

Example in Action of Police Code ten 21a

Officer: “Dispatch, 10-21a, advise home I will return at 22:30.”

Dispatch: “Copy that, Unit 12. 10-21a message sent to home.”

Final Thoughts

Now you know what 10 21a police code means. If you’re interested, check out related sets of police code 10-21a.

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• Cop 10-21 code
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