Can't find anything that suggests checks were performed in the garage.
May I refer you to a passage in Dr Amaral's book ~
~ Quote ~ To avoid contamination of evidence that will be gathered at the McCanns', Mark Harrison has insisted on the availability of
decontaminated premises exclusively set aside for this purpose. Julio Barroso, mayor of Lagos, agrees to lend us the
garage of a new, unoccupied building in the centre of Lagos. The place is cleaned from top to bottom.
Clip
These objects are then conveyed to t
he decontaminated premises. They are placed on the ground, a good distance apart for the dogs to examine.
At 8pm, Tavares de Almeida calls me to let me know that Mark Harrison requires another place because this one is not sufficiently clean. ~ end Quote
Dr Amaral makes it clear that these items have been checked on three separate occasions ~ Eddie only alerting to clothing on the third inspection.