in charge

[in charge] {adv.} or {adj. phr.}, 1. In authority or control; in aposition to care for or supervise; responsible.

If you have anyquestions, ask the boss. He's in charge.

2. Under care orsupervision.

The sick man was taken in charge by the doctor.

During your visit to the library, you will be in the librarian'scharge.

Compare: TAKE CARE OF.