Kuala Lampur, April 3 -- In 1982, social scientists James Wilson and George Kelling first proposed the Broken Window Theory while studying criminology in New York City.

They observed something fascinating in Brooklyn neighbourhoods: when a single broken window in a building went unrepaired, vandals would soon break more windows.

Trash would accumulate. Graffiti would appear. Eventually, entire blocks would descend into lawlessness.

The researchers concluded that small signs of disorder - like that first broken window - send a powerful message: no one cares here.

This psychological signal invites more serious crimes and antisocial behaviour.

The theory was put to the test when New York implemented its "zero tolerance" policy in the 19...