A security guard has been arrested on suspicion of manslaughter after an alleged shoplifter he tackled bled to death when bottles he was carrying smashed.
The 30-year-old suffered a cardiac arrest in the altercation in The Shires car park in Trowbridge on Thursday afternoon.
He was treated by paramedics but died at the scene, police said.
The 20-year-old security guard, from Trowbridge, was arrested shortly after.Det Ch Insp Jeremy Carter said: "He tackled the suspected shoplifter causing a number of glass bottles he was concealing to smash.
"He suffered significant bleeding from which he died."
Image caption Police were called to the Shires Shopping Centre car park in Trowbridge on Thursday afternoon
He said the victim, who was thought to be from the Cornwall area, was suspected of committing a number of shoplifting offences in the town and there had been "various episodes involving this individual and security staff from surrounding stores during the day".
"We need to understand whether or not the force being used was proportionate to the circumstances that unravelled during the course of the day," added Mr Carter.
"Formal identification is yet to be carried out and a post mortem is due to be carried out later today [Friday]."
An Asda spokesman told BBC News its security staff were not involved.
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