The Phenomenon of Elder Mistreatment. $t Aging and Elder Mistreatment ; Victims and Their Abusers ; Types of Elder Mistreatment ; Why Elder Mistreatment Occurs -- Diagnosis and Intervention. Diagnostic Phase: I. Preparation for Assessment ; Diagnosis Phase II. Assessmennt ; Intervention Phase: I. Considerations and Crisis Treatment ; Intervention Phase: II. The Many Forms of Treatment ; Intervention Phase: III. Legal Intervention Epilogue -- Harborview Medical Center Elder Abuse Diagnostic and Intervention Protocol -- Dementia Scale -- Mini-Mental Status Exam -- ADL Evaluation Form -- Symptoms of Depression -- Powers of Attorney -- California Penal Code 368.