Perhaps it would be more useful to look at questions that Martin Grimes was actually asked to answer:
* Could you explain the methodology regarding the performance of the dogs in the scope of the undertaken searches ?
* Could you provide a thorough description of the dogs' skill and orientation, as well as an interpretation of the dogs' indications in the specific cases ?
* Aiming at determining the reliability of the canine performance, in what concerns the alerts given to blood scent and to dead body scent, how reliable are those indications in this particular case ?
* From the behaviour of the dogs, is it possible to distinguish between a strong alert and a soft alert ?
* Can you say whether the indication given to the cuddly toy corresponds to a concrete alert to dead body scent or to a mere dog playing trick ?
* In what concerns the cadaver scent on KATE's clothing, could it be undoubtedly stated that those clothes had been in contact with a dead body ? Or could the alert have been given even if those clothes had been in contact with other pieces of clothing, surfaces or items which could have had previously touched a dead body, thus allowing for secent transfer ?
* Does the EVRD dog ( dead body scent dog) also alert to blood traces coming from a living person or from a dead body ?
* In what concerns the indications given by the CSI dog ( human blood detecting dog), can this dog alert to other biological fluids ? Isn't there a chance, even a tiny one, of some confusion ?
* How long does a cadaver need to be in contact with a surface or an item, so that the scent can be indicated ?
* How farther can a blood trace date back in time, so that the CSI dog gives an indication ?
* Can the dogs mix up scents from human and non-human traces ?
* From your experience as a dog Handler, can you specify whether the dog's positive indications have always been corroborated by positive scientific results ?
* Did Gerald McCann ask you, at any time, in Portugal, or in the United Kingdom, any questions about the performance of the dogs in this case ?
His responses are included in the PJ Files and can be read here:
http://www.mccannpjfiles.co.uk/PJ/MARTIN_GRIMES_RIGATORY.htm