On what charges do you arrest him?

你们根据什么罪状拘捕他?

《新英汉大辞典》

Why'd you do it? When is it gonna be finished? When you catch him? When you arrest him?

你为什么那样做？这件事什么时候结束？你抓住他的时候？你逮捕他的时候？

youdao

You can break a man's skull. You can arrest him.

你可以击碎一个男人的脑壳，可以逮捕他，甚至可以把他关进地牢。

youdao

There is an obsession with official data too: read or listen to a report on the arrest of a criminal and you will probably learn the licence number of the police car that picked him up, the names and badge numbers of the arresting officers, and the exact time that he was taken into custody.

ECONOMIST: Mexico