Strikers stop a bus trying to cross the Gainers picket line. Journal file photo / edmontonjournal.com

A striker smashes the window of a truck transporting hogs to the Gainers plant during the strike. Journal file photo / edmontonjournal.com

Strikers at the Gainers plant rock a car trying to cross the picket line. Journal file photo / edmontonjournal.com

Edmonton police officers drag pickets away from the Gainers plant. Journal file photo / edmontonjournal.com

A police confrontation with a striker outside the Gainers plant. Journal file photo / edmontonjournal.com

A picket line confrontation outside the Gainers plant. Journal file photo / edmontonjournal.com

Then Alberta NDP leader Ray Martin talks to a police officer outside the Gainers plant. Journal file photo / edmontonjournal.com

Gainers strikers hurl rocks at buses carrying replacement workers. Journal file photo / edmontonjournal.com

A striker marches along a line of Edmonton police officers at the Gainers plant. Journal file photo / edmontonjournal.com

Striking Gainers workers picket Gainers owner Peter Pocklington's house, then on Saskatchewan Drive. Journal file photo / edmontonjournal.com

A gainers striker with an effigy of the Gainers president. Journal file photo / edmontonjournal.com

A replacement worker is hoisted in to the air by cheering strikers who gave him money for not crossing the picket line. Journal file photo / edmontonjournal.com

A police officer chases down a man outside the Gainers plant. Journal file photo / edmontonjournal.com

A police officer in a physical confrontation with a man outside the Gainers plant. Journal file photo / edmontonjournal.com

A police officer takes down a man outside the Gainers plant. Journal file photo / edmontonjournal.com

Police in riot gear at the Gainers strike. Journal file photo / edmontonjournal.com

Police in full riot gear at the Gainers plant. Journal file photo / edmontonjournal.com

Police officer in riot gear at the Gainers plant. Journal file photo / edmontonjournal.com

Dan Keelan takes a break from the Gainers picket line. Journal file photo / edmontonjournal.com

Edmonton police officers soak up some sun at an arena as they wait for possible duty at the Gainers plant. Journal file photo / edmontonjournal.com

A police officer displays weapons found near the Gainers palnt. Journal file photo / edmontonjournal.com

A person dressed up as 'Peter Porklington' hands then-Quebec Premier Robert Bourassa a hat and pamphlets on behalf of striking gainers workers. Journal file photo / edmontonjournal.com

Striking Gainers worker handing out pamphlets. Journal file photo / edmontonjournal.com

Supporters of striking Gainers workers gather outside the Alberta legislature in 1986. Journal file photo / edmontonjournal.com

Angry strikers at the Gainers plant in 1986. Journal file photo / edmontonjournal.com

A striker jumps in front of a bus at the Gainers plant. Journal file photo / edmontonjournal.com

Gainers workers toss rocks at a bus carrying workers across the picket line. Journal file photo / edmontonjournal.com

Police get physical with pickets outside the Gainers plant in 1986. Journal file photo / edmontonjournal.com

A man being handcuffed outside the Gainers plant. Journal file photo / edmontonjournal.com

Pickets walk the line outside the Gainers plant in 1986. Journal file photo / edmontonjournal.com

A tire punctured with a nail outside the Gainers plant. Journal file photo / edmontonjournal.com

Striking Gainers worker Albert Russell gets a goodbye kiss from his wife, Sonia, after being arrested. Journal file photo / edmontonjournal.com

A bus with replacement workers is attacked on the picket line at the Gainers plant in 1986. Journal file photo / edmontonjournal.com

Workers on the picket line at the Gainers plant in 1986. Journal file photo / edmontonjournal.com

A striking Gainers worker with his bride on the picket line after their wedding. Journal file photo / edmontonjournal.com

Cari-lynn Peevey, flanked by her dad Garth and mom Renee, tastes her birthday cake on the Gainers picket line. Journal file photo / edmontonjournal.com

Police escort buses of non-union workers to the Gainers plant. Journal file photo / edmontonjournal.com

Striking Gainers workers react to the news the company has terminated their pension plan. Joiurnal file photo / edmontonjournal.com