Each applicant for a Canada Immigration (Permanent Resident) Visa, aged 18 or over, will undergo a Security Clearance to prove that he or she is not criminally inadmissible.
Police Clearance Certificates or certificates of non-criminal activity, as they are sometimes referred to, must be obtained from the country of current residence and from each country in which the applicant has resided for more than six months since his or her 18th birthday. Police Clearance Certificates can usually can be obtained through law enforcement offices or other government agencies. In extenuating circumstances, Canadian Immigration Visa Offices will waive the requirement to submit Police Clearance Certificates.
For the country the individual currently lives in,
For countries where the individual has lived for six months or more,
All applicants for Canada immigration must also undergo a background clearance to weed out those who have been, or are involved in, espionage, subversion, or terrorism. This is to ensure that the safety and order of Canadian society are maintained and protected. Such security screening decisions are made based on information from every available source, which is then carefully weighed to determine whether an applicant is likely to threaten the internal security of Canada. When there is an indication of security concerns, an interview will be scheduled to discuss these findings with the applicant. Anyone who poses such a threat must necessarily be prevented from entering Canada.