Ricky Dennis was one of three men involved in the August 2018 attack
Combined Forces Special Enforcement Unit of B.C. checked 33 vehicles over four days
Police raided the rural property in 2017 after tailing a stolen car there
Police are also seeing drugs laced with more cutting agents because of the lack of supply
The trial is set to start on March 3 at B.C. Supreme Court
Police worry about violence targeting the outlaw motorcycle group
