There's a special place in hell for people who do things like this.

And a special place in the corner of the room and Dunce hat for people who didn't convict them and who paid good money to buy crap when lives were at stake.

Edit: Some links

http://en.wikipedia.org/wiki/Quadro_Tracker

http://en.wikipedia.org/wiki/ADE_651

http://en.wikipedia.org/wiki/GT200

http://en.wikipedia.org/wiki/Alpha_6

http://en.wikipedia.org/wiki/Sniffex

And some food for thought by Stephen Fry

  The use of the GT200 as a means of tracking smuggled 
  ivory in Kenya has also been questioned. Stephen Fry, 
  who saw the GT200 being used by Kenyan rangers in an 
  attempt to catch poachers, described the misinformation 
  which accompanied the devices as "cynical, cruel and 
  monstrous." He told the BBC's Newsnight programme: "I 
  was horrified. They had spent a vast sum of money on a 
  modern equivalent of a hazel twig divining rod. There 
  was no possibility that such a thing could work."