I see you have some issue with figures of speech. The tone makes me doubt you ever set foot in a courtroom as well - TV series don't count.
"mob rule
/ˌmäb ˈro͞ol/
noun
noun:
mob rule
- control of a political situation by those outside the conventional or lawful realm, typically involving violence and intimidation."
But since you went the Wikipedia way, give this one a try:
https://en.wikipedia.org/wiki/Ochlocracy
"Ochlocracy (Greek: ὀχλοκρατία, translit. okhlokratía; Latin: ochlocratia) or mob rule is the rule of government by mob or a mass of people, or, the intimidation of legitimate authorities"