Alberta Justice has launched a review of a Calgary pathologist who has worked on hundreds of death investigations including 13 homicide cases.

The review comes amid concerns about the accuracy of some of his conclusions in several non-criminal case autopsies.

Justice Minister Verlyn Olson said Thursday that multiple incorrect findings discovered sparked the investigation into all the doctors' work.

"This raises doubts about the possible accuracy of this pathologist's other work including criminal cases," Said Olson.

The doctor's name has not been released, only that he worked at the Calgary Medical Examiners offices for over a year, and was involved in 426 death investigations.

This review comes just as a 2011 investigation wraps up into the work of three other medical specialists in the province.

Two other former Calgary pathologists and one radiologist from Drumheller had their work scrutinized because of irregularities.

Because of that investigation, the Justice Ministry instituted new protocols in how criminal cases are dealt with, now all autopsies are peer-reviewed before any results are given to police.

The RCMP "K" Division has been informed of this most recent review and it says it will await the results before revisiting any individual police investigations.

"Some of those cases would have resulted in convictions some not in conviction, and charges not being pursued," Said Assistant Deputy Minister of Criminal Justice Greg Lepp. "So we will be looking at all of them and then taking appropriate action once the review is completed."

Some observers are speculating that the workload on Alberta specialists is the reason for these recent reviews.

"Pathology is in a bit of a crisis situation and a lot of it is organizational," Said New Democrat Party MLA, Rachel Notley. "I've heard from pathologists that they've been asked to do too much with too little."

The Justice Department says its added staff in pathology departments in both Calgary and Edmonton, including one additional forensic pathologist.

With Files from Kevin Armstrong