Amy Winehouse clinic boss Brendan Quinn on NMC practice order
A nurse accused of falsely claiming to be a doctor has had the restrictions placed on the type of work he can carry out renewed.
Brendan Quinn ran the £10,000-a-week Causeway Retreat on Osea Island, off the Essex coast, which closed in 2010.
The late singer Amy Winehouse was one of a number of celebrity clients who stayed at The Causeway.
Mr Quinn, who is also accused of failing to register the hospital, denies the allegations.
A disciplinary hearing which will decide Mr Quinn's future as a registered nurse is to continue later this year.
In the meantime, the Nursing and Midwifery Council (NMC) has confirmed an interim conditions of practice order on Mr Quinn, which sets out the terms of his continuing to work as an addictions nurse.
Under the order he is only allowed to work at the Belgravia Clinic in London under supervision.
The NMC tribunal, which part-heard the case earlier in the year, was told Mr Quinn was chief executive officer of the Causeway Retreat and between May 2007 and January 2010.
Between 2008 and 2010 he is alleged to have "caused or permitted clients to be admitted to the Causeway and/or treated there, who were mentally ill".
He is also alleged to have failed to "maintain appropriate arrangements for the management of medication at the Causeway".
Another allegation is that he failed to ensure that "adequate arrangements" were in place for the health and safety of staff and clients.