Richard Bain had a large arsenal of weapons in his home, a Surete du Quebec officer testified Tuesday at the trial over the election night shooting.

Bain is accused of killing Denis Blanchette and injuring Dave Courage, the attempted murder of police officers, and starting a fire at the club the night the Parti Quebecois was elected as the government of Quebec on Sept. 12, 2012.

SQ officer Alain Lemieux told the court Tuesday at Bain's trial how the alleged killer lived at a fishing camp he owned in La Conception near Mont-Tremblant. 

It is the first place the SQ visited after Bain's arrest.     

Lemieux told the court he was sent there with a dog to sniff out potential explosives, in case the cottage was booby-trapped, which is was not.

Once inside the cottage, the officer testified that he noticed a large arsenal of weapons and ammunition. 

There was number of handguns, many hunting rifles, and what he believed were machine guns.

In the basement of the cottage, the SQ found entire military-style crates of ammunition piled up and a loaded 12-gauge shotgun near the door. 

There were weapons hidden under a mattress, the officer told the court. 

Police spent a good deal of time securing the weapons one by one.

Earlier in the day, this ninth day of the trial, eight Montreal police officers built a second-by-second narrative of the shooting and the events immediately after, as the Crown sought to highlight the fact the crime scene hadn't been tampered with. 

One of those officers was Martin Duvert, a constable from Station 21 who was finishing his shift, but rushed to the Metropolis when he heard the call for shots fired on a police radio.

In court on Tuesday he said "it was mayhem on the police radio" as officers called out reports of the people injured, and the fire at the back of the club.

Duvert said that when he arrived he saw some SQ plain clothes officers were shocked and scared, with one saying that if the firearm had not jammed, the shooter could have killed them all.

Under cross-examination, the defence wanted to know why Duvert never mentioned anything about anyone being scared in his report.

Duvert said that he wrote the report the night of the shooting, and has never re-read it since it was filed.

He said that he has since had flashbacks to that night, and that was when he remembered the officer telling him he was scared.

Duvert explained how he began setting up a security perimeter, telling colleagues to block the exit of a nearby apartment building and the nearby bar Foufounes Electriques.

He also told bicycle officers to block off streets as part of the crime scene.

Duvert said he stayed near Bain's vehicle, which contained the firearms and gas cans, for nearly three hours until he was relieved by Sgt. Claude Provost

Provost, who has since retired, then testified how he took over from Duvert in guarding the car, and telling officers to check with him before entering the crime scene. 

Police are again expected to testify Wednesday, this time SQ officers with more on what they found inside the fishing lodge.