The Truth About Lying: What Investigators Need to Know
“Often investigators express confidence in their ability to spot a lie. The belief that it is relatively easy to catch a liar has been fueled by literature that often lists so-called secrets of nonverbal communication.” -Brian D. Fitch, Ph.D.
This is a pretty good overview of methods to detect lies and deception and a good jumping off point for those new to interview and interrogation. The endnotes also provide a useful resource for further reading.