sentences:  By the morning of Saturday April 27, all 10 correctional centres in Alberta (in Calgary, Edmonton, Peace River, Medicine Hat, Lethbridge & Red Deer) were all actively participating in the wildcat strike.The Alberta Provincial Government petitioned the Alberta Labour Relations Board and, after the Board ruled that the strike was illegal, filed an Injunction against the Correctional Officers demanding they cease strike actions and return to work.The injunction was ignored and officers have continued striking throughout Saturday and Sunday.