The aroma of oranges is effective in preventing crime

In the Netherlands, there seems to be a research result that human beings who repeatedly committed crime were exposed to the scent of oranges, thereby reducing their aggression. Although it is not an orange, it is said that "blue light" has the effect of calming people,Deterrence of crimeYaDive to prevent suicideAlthough it is installed experimentally for the purpose, is there a similar effect?

Details are as below.Violent criminals calmed by scent of oranges - Telegraph

According to the Rotterdam Police Department, after four weeks of research to flush the fragrance of orange from the vent in the room with the criminal, many ferocious narcotics traffickers seemed more submissive and obedient than before.

Police officer Herma Heester says, "Surprisingly, the conflict in the room was also visibly diminished and the use of sedatives was also reduced by 10%."

Rotterdam is the city with the highest crime rate in the Netherlands, and it seems that arrest due to drug-related crime accounts for more than half.