Through the efforts of ARJIS and the San Diego County Law Enforcement agencies combined, all SD County LE agencies have an agreement whereas any SD County based LE agency can write speeding tickets, or any other traffic infraction tickets, outside of their specific jursidictions, within the jurisdictions of other agencies. SD County based CHP is also included when it comes to CITY streets. They already have State Highway and Unincorporated area jurisdiction as well, obviously. Sheriff's can write anywhere. PD's can write anywhere. CHP can write anywhere. As long as it's in San Diego County.
Additionally, if you are OFF-DUTY and an LE Officer and witness a traffic infraction, you can contact the local law enforcement agency and the responding officer will cut the cite, and the witnessing off-duty officer co-signs as the officer that witnessed the infraction. And that applies throughout the entire State of California. All the tickets of all the agencies in California have two officer signature lines. A SDPD Officer can be in Oceanside for whatever reason, and write tickets there if he witnesses and infraction and makes the stop. An off-duty SDPD Officer can witness an infraction in Los Angeles and if he can get the local agency to cut the cite, the SDPD Officer co-signs... then has to go back to L.A. for court which is why it's discouraged, but not prohibited, by most departments.
But does that include busting caps on a citizen
**outside of your legal jurisdiction**
while *off duty** and **out of uniform**??
Just asking....
In Alaska IIRC, the out of town cop would be in jail right now, waiting for bail hearing. But then, that's one of the reasons I enjoy living here and not there. To each his own