Dr. Walter Palmer has been the target of so many threats since news broke that he killed Cecil ... he needs police protection.
Law enforcement in Eden Prairie, MN tell us ... even though Dr. Palmer hasn't requested it, they will be doing regular checks on his home and neighborhood. The alert level is high enough that police supervisors will be involved in the drive-bys.
It's reached a fever pitch, with PETA calling for a hanging.
It's a tricky situation, because protesters have a right to do their thing. Cops say they're on high alert for people who are determined to cross the line.