There is literally not a single street I have been on in San Anselmo where I have felt unsafe.
I have seen crimes of immaturity. The only time I have been victimized, some one lipsticked my car while parked on the street. I am not sure how old they were though.
most parents don't 'parent' in Marin and the majority of the crime is by affluent white kids who think driving through San Anselmo, Sleepy Hollow... and taking plastic baseball bats to destroy cars/mailboxes... is fun. I'm really sick of it.