An independent review has found many Queensland Police promotions were made through a flawed appointment process.

The Queensland Police Service (QPS) held a series of recruitment sessions to fill out the ranks of chief superintendent, superintendent and inspector last year.

A review was reportedly instigated after complaints by unsuccessful applicants.

The Commissioner for Police Service reviews has now recommended the appointments of 36 officers be voided.

“The review was focused on process-related issues rather than the merit of applicants,” a QPS spokesperson said.

“The review commissioner's findings remain under consideration by Commissioner [Katarina] Carroll.

“The Commissioner is focused on the welfare of QPS members and is seeking urgent advice to have this situation resolved as soon as possible.”

Re-running the appointment process is expected to cost hundreds of thousands of dollars.

Queensland Police Minister Mark Ryan says the matter is being reviewed.

“Like all Queenslanders, I expect the highest standards from the Queensland Police Service,” he said.

“I am advised that the Police Commissioner is seeking urgent advice to have this matter resolved as soon as possible.”