Emergency officials are pleased with the results of a mock chemical attack on a LRT train last weekend.

The mock attack involved over 60 volunteers passengers who had to be corralled, decontaminated and medically treated.

EPS Acting Sgt. Steve Maertens-Poole said police officers corralled the crowd, garnered information about a suspect and passed it along all within the time frames that were set out.

“We had it scripted in that some people in the crowd would try to wander away, would be difficult with the police and the guys on the perimeter were good at keeping people corralled,” he said.

He said the scenario of a criminal attack is good, because it mirrors other potential emergencies.

“It could be a tanker truck on the Yellowhead or a railway car going off the rails or an industrial fire,” he added.

Maertens-Poole also said firefighters met their targets in the decontamination.

“That was a really big thing for us, to see how that worked and everything else was kind of a bonus,” he said.

One area of concern was communication, said Maertens-Poole, noting some officers wearing gas masks, had trouble speaking through their bullhorns.

He said that is the kind of lesson that can only be learned through these mock disasters.