Margaret Obi is a partner at Powell Spencer & Partners, and the founder member of its leading prison law unit. She also practises in heavyweight crime, including fraud, murder, kidnapping, and rape. She is a prison law specialist on the Law Society's Criminal Law Committee; Legal Advisor to the General Medical Council; and a Panel Member of the Joint Tribunal Service. She is the author of Prison Law: A Practical Guide (Law Society Publishing, 2008).