Here is what I found online on the topic. https://www.erudit.org/fr/revues/crimino/2003-v36-n1-crimino527/006553ar/ https://www.erudit.org/fr/revues/crimino/200

Here is what I found online on the topic. https://www.erudit.org/fr/revues/crimino/2003-v36-n1-crimino527/006553ar/ https://www.erudit.org/fr/revues/crimino/2003-v36-n1-crimino... (French, translated via DeepL) In short, increases of crimes and then declines of crimes once the army is deployed. > "Analyses indicate that there is a direct effect of increased public enforcement on the number of infractions reported in the affected areas." > "The Montérégie region: [...] a relative increase of about 50%, while it is only 15% in Montreal." > "For the Montreal region, we observe that the deployment of police forces has resulted in a significant decrease in property crime and crimes against persons. In addition, the deployment of military personnel has also led to a decrease in property crimes." They explain the increases in criminality with: "In other words, while the door-to-door operation would reduce property crime, it would at the same time increase the visibility of certain offences such as burglary". I am not certain if their conclusion is accurate. But whether or not, this explains the rumors of people breaking into people's homes/cabins during that initial period and how the presence of the army calmed people's fears. Never was it gangs roaming in the street (knowing the organized crime scene of Montreal, getting caught looting by the leading criminal elements during such an emergency would result in sever punishment) but small criminals working in the shadow. The article also agrees with one of your points: "The work of Quarantelli (1960; 2001) shows that one of the main characteristics of human behaviour in times of disaster is not to flee, but to stay and persist as long as possible in daily activities (preserving their environmental reference)."