The Causeway Retreat was an addiction treatment centre located on Osea Island near Essex, England, which operated from 2005 to 2010.
During Mr. Charrington's time, the island provided free treatment to those individuals suffering from the ill effects of alcohol and opiate addiction.
The island was eventually requisitioned by the Admiralty and subsequently turned into a top secret torpedo manufacturing base for both World Wars.
Licensing, staffing, supply of medicines and the role of the charitable arm Changing Lives were listed as areas to be examined.
[1] On 29 April 2010, a further report claimed that the Care Quality Commission had ordered the retreat to close, after it had admitted new patients despite a request not to do so pending the outcome of an investigation into allegations that it was treating patients without a licence under the Care Standards Act.