PITTSBURGH — Suspended state Supreme Court Justice Joan Orie Melvin deserves a public corruption sentence similar to that being served by her sister, state Sen. Jane Orie, a prosecutor said Monday.

Allegheny County District Attorney Stephen Zappala Jr.’s brief statement accompanied sentencing memorandums his staff filed for Melvin, 56, and a third sister, Janine Orie, 58, Melvin’s former aide. They were convicted in February on theft of services and other charges for misusing the state senator’s staff and Melvin’s lower court staff to illegally campaign for Melvin.

Sen. Orie was convicted last year of similar charges and is now serving 2½ to 10 years in prison.