1. The document is a patient information leaflet explaining what it means to be detained under Section 2 of the UK's Mental Health Act 1983.
2. A patient who has been detained under Section 2 can be kept in the hospital for up to 28 days for assessment and treatment of their mental health needs.
3. The leaflet provides information to the patient on their rights while detained, the possible length of detention, leave arrangements, complaints procedures, and reviews of their case.