A Mental Health Officer is sometimes known as MHO. A Mental Health Officer is a Social Worker who has specialised training, education, experience, and skills to work with people with a mental disorder. A mental disorder is legally defined as any mental illness, personality disorder, or learning disability and includes someone with dementia.
You may come into contact with a Mental Health Officer if you, or the person you care for, needs to be assessed under specific legislation, for example when making an application for Guardianship.