I'm not certain of any recent evaluation. It sounds as though the Aurora Institute has done some research, and I very much would like to review that research.
Louis Sebert on Question 10-18(3): Emergency Protection Orders
In the Legislative Assembly on October 17th, 2017. See this statement in context.
Question 10-18(3): Emergency Protection Orders
Oral Questions
October 16th, 2017
See context to find out what was said next.