My understanding is that in most provinces in Canada there are time frames for BMD records to protect the privacy of the individuals and families involved. I think 100 years for birth records, 75 years for marriage and 70 years for death records ... but don't quote me on that. I can't recall the exact numbers.
Generally, each province controls the release of its own records, and each province varies by how they handle things. For instance, Nova Scotia has a fabulous online resource, whereas everything in Manitoba is pretty hard to search without paying upfront.
If you are looking for deaths, knowing the cemetery where the individual may have been buried might help. The following website lists all of the cemeteries in Saskatchewan, and many of them are transcribed with the names of the people interred there. http://www.canadianheadstones.com/sk/cemeteries.php