"It happened as we were getting ready to leave the third site."
He has threatened to leave the site before, only to change his mind.
He was stopped and arrested after leaving the second site.
"He left the site about ten minutes ago," I said.
Motorists have been known to spend more than half an hour simply trying to leave the site.
Eventually he'll get married, go on to some other project and leave the site, said Wales.
But once the victims leave the site, the medical task can become much more challenging.
As of July 2011 nothing has left the site.
They finally left the site in 1993, since when it has been redeveloped as a business park.
They refused to give such details and were locked out for 45 minutes before leaving the site.