This is one of the few manga where I actually like the police in it, but they are a little unlucky since if they had a bit more evidence they'd be able to bust in and arrest them right now. Instead they are going to have to tail them and see what happens.
No fuck Tateo just complicated shit even more. Knowing that Fuckuchi history, he's definitely pinning the blame on Tateo. Here's hoping the detective doesn't fall for that. Also whatever happens to Kanoko plan to kill their prison guard?
Dammit Tateo you really just went and asked "can you put me in the same dungeon lab in which you kidnapped the other 2?", he is lucky the police is near, so if he actually ends getting himself kidnapped it wont be for too long