according to the reports in the news paper that was all pretty much disputed and it appears that she made that up JMO
Yes - unfortunately police who want to do illegal searches are familiar with ways to engineer themselves a pretext. So in this case the 'innocent dog' was used to create suspicion that a body was buried there - then they entered without a warrant.
IMO this is why CB has never been charged for this material. They knew it would be tossed out of court.