An immigration department employee reported the mistake to the privacy commissioner in an internal memo.

Prosecutors said that those charged in the 865-page indictment included two account managers, a commodities trader, a tax department employee and a former manager of the emissions trading department.

An investigation was launched after a department employee complained that the prisoner was getting special treatment.

The chief maintains command authority over all department employees, both sworn and civilian.

Waterworks and fire department employees joined a few days later.