Although a subsequent Royal Commission chaired by Justice Roy Kellock blamed lax naval authority and specifically Rear-Admiral Leonard W. Murray, it is generally accepted that the underlying causes were a combination of bureaucratic confusion, insufficient policing, and antipathy between the military and civilians, fueled by the presence of 25,000 servicemen who had strained Halifax wartime resources to the limit.
For their part, locals claimed there was never anything for them to buy on store shelves anymore because ungrateful come-from-aways had bought it all, or the military had commandeered it to supply a departing convoy.
Late on the afternoon of 7 May 1945, the day Germany surrendered, he overruled the advice of his senior officers and allowed more than 9,000 of his men to go ashore for the night, with the mild admonition that their celebration "be joyful without being destructive or distasteful."
Without licensed bars to go to, they rioted instead, setting ablaze tramcars and a police paddy wagon, smashing windows, looting liquor stores and denuding shops of merchandise.
By the time the mayhem ended later that day – after the Admiral and Mayor Butler drove through town in a sound truck ordering everyone to return to their homes and barracks, and imposing a curfew on the city – there were three men dead (two from alcohol poisoning, and one a possible murder), 363 arrested, 654 businesses damaged and 207 establishments looted to some degree.