Not "cadaver dogs." Forensic dogs (there's a difference). This is what we reported in August:
An experiment conducted by TIGHAR archaeologist Dawn Johnson during the Niku VIII expedition could be a game-changer in the search for DNA. We have often considered using specially trained dogs to search for surviving bones at the Seven Site (aka castaway campsite), but the long sea voyage and the hostile island environment make that impractical. So instead of bringing the dogs to the island, Dawn brought the island to the dogs. In a carefully designed test, she collected soil samples from six known grave sites on Nikumaroro, three known non-grave sites, and four locations at the Seven Site. Upon returning to the U.S. the samples were laid out for examination by six dog and handler teams from the Institute of Canine Forensics in Woodside, CA. The results of the initial test, although somewhat inconclusive, suggest the presence of residual human decomposition scent at a spot at the Seven Site that matches Colonial Officer Gerald Gallagher’s description of where he found the partial skeleton in 1940 and close to where TIGHAR’s 2010 excavation found a possibly human phalange (finger tip bone).
A second test with better controls is being scheduled for later this fall. If the second test confirms the findings we’ll know with reasonable certainty exactly where the castaway died and where to focus our search for bones or teeth that may yield DNA. Watch for an in-depth article on this fascinating new development in the next issue of TIGHAR Tracks.