'The British
experts accused the Portuguese of
'unprofessional behaviour' saying that their
collection of the samples could have been
handled in a better manner.
'The
Portuguese did not take this criticism very
well. There were heated exchanges.'
Portuguese
police are said to be convinced that Kate, a
GP, killed Maddie accidentally and Gerry
helped to dispose of the body.
The pair,
both 39, have always insisted they had
nothing to do with Maddie's disappearance on
May 3.
They will
find out within 48 hours if Home Secretary
Jacqui Smith will let Portuguese cops quiz
them again.
It follows a
request by the prosecutor in charge of the
case for police to talk to the McCanns and
the Tapas Seven.
A source in
Portugal said: 'It is a formality for the
British government to agree to it.'
Interviewing
would be carried out by British police with
Portuguese cops sitting in on the sessions.