The province will conduct and inquest into the death of Christopher Hiebert who became sick soon after taken into custody, and died in hospital in 2009. (Hiebert family)

The province will conduct a public inquest into the death of a man who fell ill in police custody four years ago.

Christopher Hiebert, who was 34 years old at the time of his death, became sick in a cell shortly after he was arrested on Sept. 9, 2009. He was taken to hospital where he died.

According to the law, the Chief Coroner has to hold an inquest into the death of a person who dies while in custody, unless the coroner is satisfied the cause of the person's death was entirely due to natural causes.

At the time of Hiebert's death his parents believed it could have been prevented.

His mother, Lee Hiebert, said she found her son's empty pill bottle that night and repeatedly called police asking them to check on him.

She also said he had been battling a cocaine and prescription pill addiction.

At the time police said prisoners are checked every 10 minutes, and if there's an indication of medical distress an ambulance is called.

Hiebert was facing fraud and theft charges, and according to his parents was getting ready to turn himself in.

The purpose of the inquest is to examine the details surrounding Hiebert's death, and to suggest ways in which similar cases could be avoided.

The inquest is scheduled for June 24 to 28 in Saskatoon.