Rule 4: Body language

4a. The criminal’s own body will betray him. Guilt is a powerful force and will find a way out.

4b. Signs to look out for include shaking hands, sweaty palms, stuttering words and excessive hair flicking, but the key giveaway is the eyes. Guilt will always show in the perpetrator’s eyes.

Rule 1: Be invisible
Rule 2: Expect the unexpected
Rule 3: Details matter
Rule 4: Body language
Rule 5: Stay calm
Rule 6: Undercover work
Rule 7: It's still a job
Glossary
About Bob Bernstein