In what country? I'm only familiar with rules in the US, and it isn't the case here.

> To be fair, HAMs are typically empowered by actual telecommunications agencies with legislative authority to enter premises and what have you to resolve issues

Citation, please?

I'd really like to see a documented example of some HAM entering somebody else's premises on, what, a self-appointed search warrant to hunt down a transmitter they deem illegitimate? In the USA that seems like a good way to get shot by a homeowner.