Amanda Korody and John Nuttall will enter a new phase of their trial for a 2013 Canada Day plot to plant bombs at the B.C. legislature.
Last month, a B.C. Supreme Court jury found Korody and Nuttall guilty of conspiring to commit murder and possessing explosives in connection with a terrorist group.
They hoped to use pressure-cookers loaded with explosives to kill people in the provincial capital.
Today, lawyers will argue whether the Surrey couple was entrapped by the Mounties, who launched an extensive sting operation.
The defence maintains that the pair were manipulated into pursuing a more realistic option.
Justice Catherine Bruce could stay the convictions if she concludes that the Mounties were responsible for manufacturing the couple's criminal behaviour.