It's not illegal (though unethical imho), it's the actions taken using that knowledge. Most effective if combined with parallel construction [1] that allow pol

It's not illegal (though unethical imho), it's the actions taken using that knowledge. Most effective if combined with parallel construction [1] that allow police to issue a trumped-up charge on a specific target. [1] https://en.wikipedia.org/wiki/Parallel_construction https://en.wikipedia.org/wiki/Parallel_construction