Alibi, in law, a defense made by the accused in a criminal case. The word alibi is Latin for “elsewhere.” The accused tries to establish that at the time the crime was committed he or she was at some place other than where it was committed.
According to a 2005 report by the Department of Justice, there are at least 21,500 gangs and more than 731,000 active gang members in the United States. Learn how and why street gangs form.
Think you're a good liar? A polygraph might disagree. By monitoring a few physiological signs, these machines know if you're being deceptive, even if you don't have a "tell."