I'm not sure what you mean by "Corps of Commissionaires" - if you mean the private company, Commissionaires, they have the capability of doing electronic fingerprinting, which the RCMP can process in 72 hours (if there is no criminal record). Commissionaires is not the only private firm who can do this. Electronic fingerprinting costs a bit more, but it is faster.
http://www.cic.gc.ca/ENGLISH/resources/manuals/bulletins/2009/ob116.asp