Giles was Called to the Bar in 2017 and is a criminal barrister on the Midlands and Oxford Circuit working out of No.5 Chambers, Birmingham. Giles was appointed a Legally Qualified Chair of the Police Misconduct Panels in 2023 for the South Eastern Region. When the law changed in 2024, Giles transitioned over into being a Legally Qualified Person and was re-appointed to the South Eastern Region; Giles was then further appointed to both the North Western Region and parts of the South Western Region. In 2024, Giles was elected the Vice Chair of the National Association of LQPs.