Bombards Body Language is one of the best known schools for detecting deception using these techniques. The FBI, CIA and interrogators are trained in these techniques.
Before we go to the debate, this is not the first time Joe Biden has used an ear piece, so Bombards has a reference:
On to the debate:
[Editor’s Note – We got a good laugh out of the AP publishing that they confirmed that Biden did not wear a wire. It is not like they searched him in the middle of the debate.]
John Talks has what is likely the best video evidence of a wire: