" It was a case of false arrest, " said the judge wisely.

“这种逮捕是不合法的，”这个法官明智的说。

You could sue the police department for false arrest.

你可以起诉警察局误捕。

I could sue the police department for false arrest, but I decided not to.

我可以起诉警察局误捕，但我决定不这样做。

" False arrest" is a situation where you are taken by the police but they didn't do it properly.

“误捕”是指您被警察带走但他们没有采取适当措施的情况。