A lot of quote-unquote "conservative" judges are actually "law and order" types, who believe that the police are never wrong, that any search is legal, and that anyone accused of any crime is guilty. Ronald Reagan's judicial appointees included many of this ilk. On the current Supreme Court, Alito and Thomas are good examples of this type of "conservative" thinking (but Scalia is not).
I dunno; Thomas dissented in Raich -- the first paragraph of which reads:
Respondents Diane Monson and Angel Raich use marijuana that has never been bought or sold, that has never crossed state lines, and that has had no demonstrable effect on the national market for marijuana. If Congress can regulate this under the Commerce Clause, then it can regulate virtually anything–and the Federal Government is no longer one of limited and enumerated powers.