Giles was Called to the Bar in 2017 and is a criminal barrister on the Midlands and Oxford Circuit working out of Citadel 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 for a number of regions until 2025. Giles was appointed as a Legally Qualified Chair for the British Transport Police in 2025. In 2024, Giles was elected the Vice Chair of the National Association of LQPs. Giles was appointed as a Deputy Traffic Commissioner in 2025.