X-Ray
So I guess one could also be a lone female, unmarked, second unit on scene with an x-ray machine ? Seriously folks.......
The vernacular 'X' for the station is indigenous to Richmond PD and not an east
bay thing any more than MCR's, SPA or PAC's are an east bay thing. No other agency besides RPD and those they dispatch perhaps EC/SP use 'X' to denote station.
When working in West COCO many moons ago the word was that the term orginated in the circa late 60's just after they got portable radios; On the units punch card the practice was for dispatchers (who were mostly lazy/broken cops back then) would to make an 'X' rather than write out RPD or Station or just 'S'. Since sloppy 'S''s can look like 6's which means 'on portable' they wrote X instead to avoid confusion. Cops will do anything to avoid writing and this is perhaps an example of cop laziness/efficiency becoming cop language.
Therefore, I would respectfully assest that 'X' is a West Co Co thang not an east bay thing. ECPD never said X when they were dispatched by COCO S/O (or themselves across the hall from Blevins office) and San Pablo was the same when they dispatched themselves from the fishbowl in the adobe- no 'X' in thier vocabulary but now there is. Its a Richmond thing. MCR23, 10-8.