In Bennett v. British Columbia, 2009 BCSC 1358, the BC Supreme Court ruled that the employer  - the provincial government - was permitted to reduce post-retirement group benefits, and thus dismissed a class action.  There were approximately 27,000 people in the impacted class.

Law firm Heenan Blaikie has written a summary of the case: "Reduction in Retiree Benefits Sanctioned in British Columbia" (October 7, 2009).