February 23, 2015: Gail Johnson from Yahoo Finance wrote a useful article on "What Happens when your tax return gets audited"
According to Barrett Tax Law, the CRA performed more than 370,360 audit and review actions in the 2008-09 tax season. During that period, it conducted 1,439 international tax audits and 34,111 tax shelter audits. Of those investigations, the Public Prosecution Service of Canada received 164 cases for criminal prosecution while the Ministere de la Justice du Quebec received 58 GST audits to prosecute.
The article in its entirety can be accessed here.