A undercover Panorama reporter filmed staff at the Edenfield Centre – one of the UK’s biggest mental health hospitals – using restraint inappropriately and patients enduring long periods of seclusion in small, bare rooms.
Staff swore at patients and on occasion were seen slapping or pinching them.
Some workers were sacked after the BBC’s findings were broadcast.
The programme sparked an independent report, which found Greater Manchester Mental Health NHS Foundation Trust repeatedly missed opportunities to act on concerns and had a culture of “suppressing bad news”.
The trust was again rated “inadequate” by the Care Quality Commission earlier this year despite some improvements having been made.
Criticisms included issues with patient safety and pressures on staff, with some still feeling unable to speak up about their concerns.
The Edenfield site has since been rebranded as the Riverside Centre.