Officer dubbed 'Robocop' leaves police because of mental health issues

Sergeant Ali Livingstone Credit: ITV Anglia

A police officer nicknamed 'Robocop' due to his arrest record said he has left the force due to mental health issues.

Sergeant Ali Livingstone made up to 700 arrests in a single year during his service with Suffolk Police.

He wrote on Twitter: "I went from being the UK's top arresting officer to being so troubled by what I'd seen and done in the line of duty that I've had to walk away from the very job that defined me. To those who think I was just locking up petty criminals for minor offences, you couldn't be further from the truth."

Mr Livingstone said he suffered a "significant mental breakdown" in March last year.

Sergeant Ali Livingstone Credit: ITV Anglia

He said he wanted to share his story to try to remove the stigma around mental health and help others.

Mr Livingstone added: "To all the cops out there, keep fighting the good fight. You do the toughest of jobs and the overwhelming majority of the public have your back and support you."

He is now planning to write a book.