A law-enforcement officer's duties (some that would make it into a TV cop series and some that wouldn't) are examined in director Daniel Kraus's “Sheriff,” a candid profile of Sheriff Ronald Hewett of Brunswick County, N.C. Hewett's work life is chronicled unobtrusively as he leads a murder investigation and an intense search for an escaped prisoner. He is also shown addressing students at an assembly and leading a search for a stolen truck and a raid on a video-gaming parlor.