Who got arrested?

A variety of people are arrested over the course of the novel. Without more specific information, I can only supply you with the following quotes.

Third, the police have arrested a man (whose name I won't put in writing). It's terrible not only for him, but for us as well, since he's been supplying us with potatoes, butter and jam. Mr. M., as I'll call him, has five children under the age of thirteen, and another on the way.

The people who supply us with food coupons have been arrested, so we have just our five black-market ra-, tion books-no coupons, no fats and oils.

This morning Mr. van Hoeven was arrested. He was hiding two Jews in his house.