An undercover reporter worked inside the Edenfield Centre caring for people held under the Mental Health Act who are at serious risk of harming themselves or others. With a hidden camera, he filmed staff swearing at patients, taunting and mocking them in vulnerable situations - when they were undressing - and joking about their self-harm. Patients were being unnecessarily restrained as well as being slapped or pinched by staff on some occasions. Some female staff acted in a sexualised way towards male patients. Ten patients were being held in small seclusion rooms, designed for short-term isolation to prevent immediate harm, for days, weeks or even months, with only brief breaks. Patient observations, a crucial safety measure, were being regularly missed, and records falsified. Seven members of staff were seen sleeping on shift. A consultant psychiatrist said the footage showed a ‘toxic culture’ among staff of ‘corruption, perversion, aggression, hostility, and lack of boundaries’, which were undermining patient recovery.