I'll bite.
Do you tolerate crime? Do you let people steal from you?
At one time it was considered the civil duty to enforce law. And to present law breakers to trial,, personally.
Many State constitutions had this codified.
Further, It is the Duty of the elected Sheriff to protect those in his jurisdiction,, to protect those accused of a crime and to insure that his rights up to and including a fair trial are protected.
not to prey of his constituents.