"casual employees make up half the workforce responsible for the reviews of permanent residence applications. These employees, mostly students, are given three days of training on the department's global case management system (GCMS) and rotate on three shifts."
http://www.thestar.com/news/immigration/2015/01/05/high_error_rate_found_in_canadas_immigration_processing.html
http://www.thestar.com/news/insight/2015/05/30/immigration-canada-snafus-causing-a-lot-of-misery.html
http://www.thestar.com/news/immigration/2015/01/05/high_error_rate_found_in_canadas_immigration_processing.html
http://www.thestar.com/news/insight/2015/05/30/immigration-canada-snafus-causing-a-lot-of-misery.html