Washington County Sheriff Jerry Dunbar is warning residents about a potential phone scam where the caller claims to be raising money for law enforcement. Dunbar says the local sheriff’s organization and the Iowa State Sheriff’s and Deputy Association no longer solicit by phone, and rely on direct mail. He says the best way to tell if a letter is legitimate is to look for his signature and the acronym ISSDA. He says the phone scammers claim to be with the United States Deputies Association. He says they are looking into what can be done with the organization and it’s claims.