A Mr Krugel, at the McCann's request, attended Praia Da Luz last week from South Africa alleging he could assist in locating Madeleine McCann. I have spoken with the Police officers that accompanied him and viewed the documentation Krugel has supplied to the PJ.
The limiting factor in coming to a view is that Krugel did not allow anyone to view the handheld device he had with him or observe him using it. He was unable to provide any validating scientific data or documents to support the claims he made or the device he alleged to have with him.
In short he would appear to claim he has uniquely developed a handheld device that can find a missing person alive or dead in any given terrain over any elapsed time period.
In debriefing the officers who accompanied Krugel it is possible to hypothesise what he may have been doing and using.
In consultation with a colleague Dr Wolfram Meier-Augenstein we feel he may have been attempting to give the impression he had developed and was using a "Remote Laser based gas sensing device". However his claims regarding the distance of detection, up to 20krn and the use of a hair sample are highly unlikely and would be a great innovation in the scientific world. Further provenance of this technique could be sought from Prof. Miles Padgett who is a Professor of optics in physics at the University of Glasgow.
One obvious challenge to the claims of the device capability is that if Krugel claims that by taking 3 separate location readings he is able to triangulate to an area then one would assume that as an area was identified further reading and triangulation inside that area could be conducted repeatedly until an "X marked the spot".
Of most concern is the poor quality of his report which merely shows a google earth image of an area to the east of Praia Da Luz and includes open scrub and, beach and sea. As Krugel was not prepared to allow the device to be viewed or provide any specification data of readings or equipment and the fact that no known device currently exists commercially or academically then I can only conclude that the information he has provided is likely to be of low value.
by Mark Harrison MBE, National Search Adviser Homicide, Missing Persons, Mass Fatality Disasters in National Policing Improvement Agency [NPIA] extract of document 'Madeleine McCann Search Decision Support Document' dated 23.7.07 - page 2224/2225 of the 201/07.OGALGS Investigation Process