A "complaining witness" refers to a person who reports or accuses someone else of a crime or wrongdoing. They are the individual who complains about or brings forward the allegations against another person. Full definition
Best told Johnson that «as long as you lead a law - abiding life and stay away from the complaining witness and not have any communication with her for two years,» his record would be expunged. (nypost.com)
While avoiding contact or staying a certain distance from the complaining witness is what often comes to mind, such restrictions are not required. (hudsonvalleyone.com)
At trial, the State of Connecticut introduced evidence of their text communications and asked the complaining witness, the accuser, if, in fact, that her messages reflected any sort of romantic intent. (pattislawfirm.com)