Omar Bulphred, 27, was arrested in July, a month after serving seven years in prison for firebombing a Jewish school and trying to bomb a Jewish community centre.

Bulphred has been held at a psychiatric hospital for the past three months.

"We want to assess his level of responsibility and danger," his lawyer, Luc Vaillancourt, said Tuesday.

Bulphred had been released from prison after setting fire to the Jewish school in 2006 and trying to attack the community centre the following year.

Psychiatrists say Bulphred is fit to stand trial and could be held criminally responsible for the alleged threats, which took place on July 2 and 3.

Bulphred has a lengthy criminal record including convictions for firing a rifle at customers at a cafe near his house.

He's also been convicted of plotting the abduction, kidnapping and murder of a fan at a popular Montreal dance party in 2007.

During his time in the mental hospital, he wrote about murder fantasies related to the shootings at Dawson College and Ecole Polytechnique.

Bulphred has repeatedly refused to be evaluated by specialists.