Mark joined HMP Whitemoor 22 years ago and hasn't looked back, describing his role as 'the best job in the prison service.' I looked at other uniformed services like the police, but the prison service appealed to me and it’s been the best decision. He adds: "It's the best job in the prison service. Advertisement Hide AdAdvertisement Hide Ad“Indoor rowing is all about rhythm, focus, and showing up consistently,” says CJ White, aged 30. Advertisement Hide AdAdvertisement Hide AdPrison officers undertake 10 weeks of training which helps them to prepare for the unexpected.