A perp walk, walking the perp, or frog march, is a practice in law enforcement of taking an arrested suspect through a public place, creating an opportunity for the media to take photographs and video of the event. The defendant is typically handcuffed or otherwise restrained, and is sometimes dressed in prison garb. Within the United States the perp walk is most closely associated with New York City. The practice rose in popularity in the 1980s under U.S. Attorney Rudolph Giuliani, when suspects charged with felonies were perp-walked. The perp walk arose incidentally from the need to transport a defendant from a police station to court after arrest. Law enforcement agencies often coordinate with the media in scheduling and arranging them. It has been criticized as a form of public humiliation that violates a defendant's right to privacy and is prejudicial to the presumption of innocence, but is defended as promoting transparency in the criminal justice system. American courts have permitted it on the grounds that it arises from the limitations and necessity of police procedure, but have also limited it only to those times when it is actually necessary. Procedure In the United States, once a person has been charged with a crime, the government may request that a judge either issue a summons for that person or an arrest warrant, which can lead to a perp walk. This decision is largely at the discretion of the prosecutor, with judges often deferring to it. Since the arrest power is meant to ensure the defendant's presence in court, lawyers defending the white-collar criminals who have been perp-walked since the late 1980s have complained it is unnecessary and superfluous in their clients' cases, even if it does give the appearance of preferential treatment for wealthy defendants. Lea Fastow, the wife of former Enron executive Andrew Fastow, cited the perp walk she was made to take even though she had expressed her willingness to surrender to a summons in an unsuccessful motion for a change of venue. Some, like Martha Stewart, have still managed to avoid being perp-walked by responding to summonses, or surrendering in the courtroom as soon as the indictment is presented in open court. This did not prevent another Houston-area defendant, former Dynegy natural gas trader Michelle Valencia, from undergoing a perp walk in 2003. After waiting all day for the indictment, her attorney told prosecutors she would return