[ninininino]

This is neat but also has serious implications for criminal enablement.

[polalavik]

no it doesnt. this data is public all over the place. most notably https://www.flightaware.com/

[ninininino]

Cool. And yours is simpler and doesn't require looking up what the identifiers are for LAPD in particular. Just own it.

[rootusrootus]

I found the list of identifiers with a single google search. For any criminal who cares, it is a tiny amount of additional effort.

[asdff]

Why? Helicopters already are on ADS-B.