A former Georgia sheriff convicted of violating the civil rights of people in his custody by unnecessarily strapping them into restraint chairs was sentenced Tuesday to serve a year and a half in prison.

A jury in October convicted Victor Hill—who was sheriff of Clayton County, just south of Atlanta—on six of seven federal charges. Prosecutors had asked for a sentence of three years and 10 months in prison, while defense attorneys asked for a sentence of probation, home confinement and a fine.