This poor device design is also often latent, and could be responsible for "No Fault Found" (NFF) reporting, in which medical devices sent for repair by clinical users are found to be operating as intended.
The vessel was sent on its way on Wednesday when it was found to be operating legitimately.
Clarke believes in the theory of experimental legislation, whereby a law is made and later adapted if it is found to be operating poorly or is being abused.
The medical tests on the workers were conducted after a routine inspection of the building in October, when a radiation detector was found to be operating improperly.
"Individuals found to be operating illegal home businesses can be subject to violations, as well as additional enforcement measures," he said.
It had been denied certification when it applied for a license after it was found to be operating without one, and had originally been told to stop caring for children by the end of January.
Five out of the first six academies to have Ofsted inspection reports published after the inspectorate's blitz of England's sixth-largest academy chain, E-Act, have been found to be operating at below the standard the watchdog expects.
His case follows other recent high profile cases involving the sexual abuse of children, including those of Stuart Hall, Jimmy Savile and a host of child sexual abuse gangs found to be operating across the country.
The Department of Health said it would soon resume collecting vacancy data and said the health watchdog the Care Quality Commission would take action against any hospitals found to be operating without enough staff.
The schools, St Anselm's preparatory school in Bakewell, Derbyshire and Highfield Priory in Preston, Lancashire, are criticised for failing to provide enough bursaries, while one of the care homes, the Rest Bay Convalescent hotel in Portcawl south Wales, was found to be operating as a hotel rather than a residential facility for the elderly and infirm.
