Law & Order is a popular American television series that follows the investigations and prosecutions of criminal cases in the New York City criminal justice system. The show originally aired from 1990 to 2010 and has spawned multiple spin-offs and adaptations.
The font used to create the title lettering of the TV show is likely Friz Quadrata Std Roman, with neon effects applied to the text. Friz Quadrata Std Roman is available for purchase as a commercial font here.