Toronto police Chief Bill Blair has been asked to conduct a review after the force released its annual "sunshine list" that shows more than half of its officers made over $100,000 last year.
The list, which details the earnings of police and civilian employees who made more than $100,000 in 2014, was released on Monday.
The Toronto Police Services Board says it is the first time earnings officers receive for off-duty work have been included in their salaries.
They say that the majority of paid duty assignments are paid for by the private sector and not taxpayers, but critics claim officers often have to work overtime to cover for their colleagues who are on paid duty.
The board says it has asked Blair to provide more information on the paid duty program and expects the chief to report back in May with an action plan.
The board also wants an explanation from Blair about the "phenomenon" of the number of officers who earn more than 50 per cent of their base salary in overtime.
Last year, 4,125 employees made more than $100,000, which includes 1,940 whose base salary is less than that threshold, but make the list with the addition of paid duty, overtime and premium pay.