I'm confusd by recent postings. Lucks like the National Center for Credibility Assessment website says federal polygraphers can't detect respiratory countermeasures:  http://www.daca.mil/br_RES_ResearchProjs.htm.

Listing Honts, C. R., & Crawford, M. (2010, March). Polygraph countermeasures cannot be detected from respiratory signatures: Government policy puts the innocent at risk. Paper presented at the 2010 meeting of the American Psychology Law Society, Vancouver, British Columbia, Canada.

Does this mean resent NCCA research shows respiratory countermeasures are undetectable by federal polygraphers?

Doesn't say anything about "PRACTICE and REFINEMENT"  in countermeasures there either...