A Calgary man whom police described as a violent, high-risk offender is back in custody after escaping during a field trip.

Police arrested Richard David Barker, 28, at the First Street S.W. C-Train platform at 8 p.m. Wednesday night. He made headlines last year when he was arrested for two robberies and nine carjacking attempts in 10 hours.

Barker was on a field trip with several other people at the Alberta Railway Museum in northeast Edmonton earlier this week when he allegedly took a van belonging to the health authority and drove away. The unlocked van, with the keys found inside, was recovered in Calgary on Tuesday.

Barker was arrested in May 2008 after a string of carjackings and robberies with a handgun in a span of 10 hours in Calgary.

In one of the incidents, Barker stole a van from a woman and drove away with her nine-year-old daughter still inside. A 75-year-old man was also assaulted during the crime spree.

In November, Barker was found not criminally responsible because of a mental disorder, and placed at the Alberta Hospital in Edmonton. A psychiatrist testified at his trial that Barker thought he was the son of God and was hearing voices.