I agree with Puggle I am not sure about the Geocaching.
But I do wonder if any particular criminal community may be considered to be on the periphery of this case.
"We encourage everybody in the community, whether it be ordinary members of the community,
people within the criminal community, this is a really, really tragic case and we ask everybody to get behind the police."
Always thought it was interesting they got a special mention.
imo
http://www.abc.net.au/news/2015-07-17/child-bones-in-sa-unlikely-those-of-william-tyrell/6628908