(Originally published 2/13/2016)
If you lean left, you likely don't regard Antonin Scalia highly. If you believe in a "living Constitution," he likely didn't regard you highly, either.
That said, he was fairly consistent in resisting expansion of police power, particularly in his views towards our protections from unlawful searches and seizures. This confounded many who had predicted that he would, like Rehnquist, routinely side with police and against criminal defendants. His retort to those who advocated expansion of police power (and subsequent erosion of our civil rights):
"There is nothing new in the realization that the Constitution sometimes insulates the criminality of a few in order to protect the privacy of us all."
He was controversial. He was a loud, obnoxious voice. He was, though, a significant reason why police still need probable cause before conducting a search.