What happen to anyone who tried protesting against the vatican laws or belifes?

Im 15 and doing a social studies paper and iv choosen the vaican because i already know a lil about the subject. anyways i need your help! one of the questions i have to answer is.. how did your government (mine being the vatican theocracy) control anyone who wanted to criticize this new system (censorship of the free press).. i really need help... i cant find any detail on what they did. did they even care about about people protesting towards it? did they kill them? throw them in jail? What did they do about people who thought it was a load of crap? i know they were punished but how? WHAT? please help paper due soon and i cant think at the moment !