If the Immigration Division decides that you are not inadmissible and cannot remain in Canada anymore, the Minister of Public Safety can appeal to the Immigration Appeal Division (IAD) within 30 days of the decision. This is known as a Minister’s appeal. You can participate in the appeal in order to explain why you should be able to stay in Canada.
Immigration investigations can be conducted by immigration as well as other agencies Immigration, Refugee and Citizenship Canada (IRCC) and the Canada Border Services Agency (CBSA), also m there may be some involvement of Royal Canadian Mounted Police RCMP, Canada security Intelligent Service CSIS or other local and international law enforcement agencies.