Although I am sure that crime rates differed between the time of the German occupation of the Netherlands and the Canadian/British "occupation" there may have been some good reasons for this, possibly due to under-reporting of crime during the former's occupation..
One may be that the populace did not feel comfortable reporting crimes to the Germans. There was little point complaining about the conduct of a German soldier when the plaintiff stood the chance of being put on a train to a work camp somewhere. (A friend's Dutch Father spent the war building torpedos at an underground Skoda plant as a forced labourer for the Germans). There was little danger of retribution when reporting crimes to the Allies, whether committed by a civilian or an Allied soldier.