RT Article T1 Why professionals fail to catch liars and how they can improve JF Legal and criminological psychology VO 9 IS 2 SP 159 OP 181 A1 Vrij, Aldert 1960- LA English YR 2004 UL https://krimdok.uni-tuebingen.de/Record/1847403069 AB In the first part of this article, I briefly review research findings that show that professional lie catchers, such as police officers, are generally rather poor at distinguishing between truths and lies. I believe that there are many reasons contributing towards this poor ability, and give an overview of these reasons in the second part of this article. I also believe that professionals could become better lie detectors and explain how in the final part of this article. DO 10.1348/1355325041719356