Conversation so far:
Why did he support prohibition?
Hazare and the youth group decided to take up the issue of alcoholism to drive a process of reform.
Did the close down any bars or drinking establishments?
Over thirty liquor brewing units voluntarily closed their establishments.

Question: Did they resort to violent means to get people to follow their rules?
Self-contained rewrite: Did Hazare and the youth group resort to violent means to get establishments to follow their rules?