POLICE did all they could to trace a vulnerable man who was killed after running away from them, a new report has said.

The 22-year-old, who has not been named, was picked up by police on April 1, 2018, after police responded to reports he appeared "agitated" while standing on the parapet of a bridge in Queen Margaret Drive in the west end.

Officers spoke with the man's family and attempted to take him home but he ran off and police lost sight of him near the Jordanhill Railway station.

He was immediately classified as a high risk missing person and a major search was launched.

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Tragically, a train driver spotted the man on the track around 9.12am but was unable to stop on time. The man, who was classed as a vulnerable person on the Police Scotland system prior to his death, was struck by the train and died from his injuries.

An investigation by the Police Investigations & Review Commissioner (PIRC) offered no recommendations about the officers conduct.

However, one member of police staff refused to cooperate with the PIRC investigation and provide a witness statement despite the body saying it was "reasonable to expect" all staff to participate.

The man is the second to have died after being in police custody last year.

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Scott Calder, a Glasgow-born university student, was dropped off by police at a bus stop after a member of the public alerted officers he was at risk of being knocked down while walking in the middle of a pitch-black road where the speed limit was 60mph.

The 23-year-old had drank too much after attending an Oktoberfest event near in East Lothian.

He was found on a beach just over a mile away the next morning and later died.

Scott's death prompted calls for an investigation but after a preliminary probe by PIRC it was decided no further action was needed - a decision was caused outrage among his family and friends.