Rapper/singer Ryan Leslie is facing a lawsuit from a police officer who claims the star included his voice on a track without permission.

Luis Mortimer, a detective from the New York Police Department, has filed suit against the musician over allegations he used a taped voice mail message in his song Joan of Arc.

Mortimer left the message on Leslie's answering machine in 2011 while investigating an incident involving one of the star's ex-girlfriends. He claims he never gave the star permission to use the tape in a track, and is seeking unspecified damages.

His lawyer, Monica Kipiniak, tells the New York Post, "The song has caused him embarrassment and has damaged his credibility as a detective."

The lawsuit has been filed at Manhattan Supreme Court in New York City.