Article Photos: Trial opens for NYC stop-and-frisk challenge 1/2

FILE - In this Sunday, June 17, 2012 file photo, Rev. Al Sharpton, center, walks with thousands along Fifth Avenue, during a silent march to end the "stop-and-frisk" program in New York. A federal trial is scheduled to begin in New York on Monday, March 18, 2013, where the NYPDâs practice of stopping, questioning and frisking people on the street will face a sweeping legal challenge. The outcome could bring major changes to the nation's largest police force and could affect how other departments use the stop and frisk tactic. (AP Photo/Seth Wenig, File)