we talk to ryan luby that has the exclusive interview with an expert himself. >> we do, he absolutely deny the claim. we learn they are certified under the same international standards they have been for years. they are turning the tables on the d.a.'s office and they say this is a political tactic to get them out of the way of doing the rock solid work all over the country and world. >> we are pittsburgh. we will give the court all of the evidence. that's what we do in holland. >> richard eikelenboom and his wife, selma consult and on the casey anthony they worked on. but they never did collect evidence themselves. >> there is evidence that have been investigated. and with more conclusive >> the eikelenbooms say that others don't like how thorough they are because it threatens labs and they have a problem with how they say prosecutors pick and choose what they do and do not want to include in cases in an effort to get the case. i'm ryan luby, denver 7 investigat >>> and tony was the first to set down with the da that says he is not qualified to call himself an expert. richard eikelen