I just read it on previous discussion on the same forum and I believe this is what they are using to reject marriages, again the change in regulation which bestowed additional authority to Immigration Officers was an Artwork of Conservatives read below please
the Regulations have now been changed and are the law.
See Operational Bulletin 238
http://www.cic.gc.ca/english/resources/manuals/bulletins/2010/ob238.asp
Specifically:
Amended provision
The amended R4 provision provides for each of the two “bad faith” tests to stand on its own and separates the requirement related to spouses, common-law partners and conjugal partners (R4(1)) from that related to adopted children (R4(2)). The amended R4 provision reads as follows:
4. (1) For the purposes of these Regulations, a foreign national shall not be considered a spouse, a common-law partner or a conjugal partner of a person if the marriage, common-law partnership or conjugal partnership
(a) was entered into primarily for the purpose of acquiring any status or privilege under the Act; or
(b) is not genuine.
AND
Implications
Assessing the bona fides of spousal, common-law or conjugal relationships
These changes will enable CIC and CBSA to deal more effectively with marriages of convenience, an ongoing issue of concern. They will allow officers to determine that a spousal, common-law or conjugal relationship is not bona fide if it is either not genuine or was entered into primarily for the purpose of acquiring a status or privilege under the Immigration and Refugee Protection Act. Henceforth, only one of the two criteria will need to be present to determine that a relationship is not bona fide.