The Crown says the only member of the so-called Toronto 18 to have pleaded guilty for his role in a militant plot was "an active and enthusiastic" participant.

The argument was made Friday in a courtroom in Brampton, Ont., at the sentencing hearing of 22-year-old Saad Khalid.

Khalid pleaded guilty in May to taking part in the plot to detonate bombs over three days at a handful of Toronto landmarks, including the Toronto Stock Exchange and the headquarters of CSIS, Canada's spy agency.

It appears Khalid's sentence will hinge on how much he knew about the ringleaders' ultimate plans.

Crown Attorney Croft Michaelson says Khalid must have been "wilfully blind" if he didn't know the terror cell wanted to harm or kill people.

Khalid was arrested in the summer of 2006 while unloading what he believed was three tonnes of ammonium nitrate, an explosive material used in bomb making.

Khalid's defence team will finish its arguments Friday.