Yes, if an officer uses their position of authority to take money that doesn’t belong to them, it is theft. If they use the threat of imprisonment to have sex with someone, that’s rape. This isn’t complicated. It doesn’t matter if the bribe was offered or solicited, the officer is either using force to have non-consensual sex or taking something that doesnt belong to them. It doesn’t matter if there was an actual quid pro quo agreement, or if the officer was planning to continue to deliver the detainee to jail. It doesn’t matter at all if the detainee is guilty, and it’s disgusting to suggest that it does so you should stop that.