Sentence:  Just as a judge may mistakenly believe in the credibility of a clever liar, thereby reaching an 'incorrect decision', an umpire dealing with the blur of a fast bowler and listening for a <WSD>nick</WSD> of the bat, or lifting his eyes quickly from the bowler's front foot to follow the flight and pitch of the ball to determine if the batter is out LBW &#91;leg before wicket&#93;, can easily be mistaken. 
Meaning of the word marked with <WSD> tags:  A small deflection of the ball off the edge of the bat, often going to the wicket-keeper for a catch.