When Mrs. Davis first comes to visit, Mrs. Crawford isn't wearing the amulet around her neck when Betty (the daughter) shows her in to the bedroom. As Betty leaves the bedroom and the scene immediately returns to Mrs. Davis conversing with Mrs. Crawford, she is suddenly wearing the amulet. The black cord is clearly visible around Mrs. Crawford's neck.
At minute 41:28, Deputy Hayes references the Phantom Lake County Police Department. Typically, police Departments are tied to cities, and towns, not counties which would indicate the correct name would have been Phantom Lake County Sheriff Department.