What are some theories around why the decline in violent crime rates

Some of the most accurate theories regarding the decline in the number of violent crimes that has taken place in recent years are the following:

-A greater presence of the government in prevention tasks, be it through the police, intelligence services or the National Security Agency itself, coordinating preventive measures to avoid this type of situation.

-An economic stability on the part of citizens, which means that they do not have to resort to crime as a means of survival, given the abundance of jobs and, therefore, the lack of economic needs on the part of individuals.

it was douglas macarthur..

because it took place after the war of 1812 had come to an end.