Определение и Значение "heavy hand"

What is the origin of the idiom "a heavy hand" and when to use it?

The origin of the idiom "a heavy hand" likely comes from the literal sense of "heaviness" associated with something that is excessive or burdensome. Over time, this literal usage evolved into a figurative expression to describe someone who exercises authority or control in an overly harsh, oppressive, or authoritarian manner.