> similar to what assange would be accused of

That's oddly specific, but still be careful what you're asking for. "Police torture suspect" gives a lot of results, for example: https://en.m.wikipedia.org/wiki/Jon_Burge

There's a good chance some of those 200 cases were rape cases.

Then there is also the torture of terrorism suspects, if you wish to take that angle since Assange has repeatedly been labeled a terrorist.

Here's two more Wikipedia articles that may be interesting to you:

https://en.m.wikipedia.org/wiki/Torture_and_the_United_State...

Especially interesting may be the "Domestic Torture in Modern Times" section if you wish to focus on what happened domestically.

https://en.m.wikipedia.org/wiki/Enhanced_interrogation_techn...

Always worth a read.