Saruman Many Colored was certainly guilty of felling trees without a permit. On another's property, no less.
Also, he and one Grima Wormtongue were guilty of squatting in Bag End.
Saruman's distant cousin Gandalf is certainly a worse miscreant, with such charges as defacing protected land, spying and trespassing on the Necromancer, leading tours of condemned properties, destruction of property, blackmail, smuggling, public lewdness, arson, drug dealing and evading authorities on a speeding eagle.
And don't forget Sam, Merry, Pippin and Fatty Bolger - for conspiracy!
