Two Scottish cases in which cadaver dogs were used without success...
The disappearance of Renee MacRae and her son Andrew (3) in 1976. No sign of them has ever been found and nobody has faced prosecution for her murder despite compelling evidence of involvement. Read more...
The disappearance of Arlene Fraser in 1998 which saw her estranged husband Nat Fraser twice convicted of murder in 2003 and 2012. Her remains have never been found.
**clip
"[1] Detective Sergeant John Cathcart coordinated the search and after eight months he had a breakthrough.
While excavating Dalmagarry quarry he was hit by a stench after removing a layer of topsoil.
Convinced it was a sign of corpses, he continued digging, but was told by a superior officer to stop as the bulldozer they were using had to go back to the contractors due to short funds.[5]"
http://en.m.wikipedia.org/wiki/Renee_MacRaeMany years later when the area was again searched nothing was found; there had been much earth movement in the intervening period.
Absolutely reprehensible that the DS ... a man who would certainly have recognised the smell of such decomposition ... was overruled due to a "shortage of funds".
Apart from SAR dogs being used initially, it was the human nose which was disregarded in this case.
Arlene Fraser: Her husband was convicted on the evidence and witness statements, I have never seen anywhere that a cadaver dog alerted anywhere; either in her home, the farm which had spcialist equipment ... (As Mr Dick told police he had no visitors on April 27, 1998 - the day before Mrs Fraser's disappearance - Fraser was telling officers he had been to see him.
Police also searched Mr Dick's farm in December 1998, interested in equipment he had for "steam cooking" and mixing pig food.
http://news.stv.tv/north/305445-court-hears-alibi-of-man-nat-fraser-says-may-have-murdered-his-wife/) or any vehicle - particularly the one which could not be accounted for.
Suzanne Pilley: The conviction was obtained on the basis of evidence presented to the court the VRD alert in the work garage being treated as probable cause ... the probable clincher for the jury as far as that was concerned was probably the CCTV coverage of Suzanne entering the building but not exiting.
Therefore backing up the indication of the VRD with solid evidential CCTV footage.