The Stasi, no contest. Did its job exceedingly well and cleanly, most people were barely aware it of its operations.

>starts thread with an edgy unrelated image just because he is paranoid the polfags will spam Gestapo with no end

Stassi > Mossad > CIA > Gestapo > DINA

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do Oprichniki count?

>>480907
CIA is more for external affairs, at least in the post-Cold War era. As far as internal secret police goes in the US, it would probably be more a collaboration between FBI and NSA.

>>480811
Sicherhetsdienst achieved many of its policy outcomes in a 5 year time frame, including the depopulation of Central and Eastern europe of a significant body of "undesired" persons.

Metsuke.
Kyoto Police.
Ishin.

>>480803
The Venetian police throughout the enteritey of Venice's history, they are the reason we know so much about the renaissance and almost all records of their court life came from them best spies ever

Pretty uknow, but the argentinian military in their last dictatorship did a good job killing communists in a "underground" way.

>>480907
>CIA
>secret police

just stop

>>482917
He has nazi storm troopers, you have secret police, I have a security service.

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>>480811
>Stasi

it's really cool that we are able to find out how much they actually looked into people, without them and the fall of the Berlin wall we would have never really figured how much it was possible for secret police with a lot of spare time to figure out about their residences.

especially in a city like east Berlin, seems spooky that they had almost a file for everyone living there.

>you will never be a Stasi agent and listen in on a qt, and use that information to be able to date her.

why even live.

>>482892
And they gave the children of "troublesome" people to ones they agreed politically with or trusted.