While "Style Wars" promoted the idea that graffiti is a form of creative expression, not every person within the film held this same belief. In fact, throughout the film we see ways in which institutions such as the government and law enforcement tried arduously to prevent graffiti in New York City. For example, the city spent a large sum of money on negative subway advertisements that portrayed graffiti as a crime. On top of this, the mayor (who at the time was Ed Koch) pushed for the building of fences, with the intent of blocking off the entrances to subways, where graffiti artists would create their work. Additionally, he had police guard dogs put into these areas to scare away those who may enter. Both Koch and The New York City Police Department rallied to discourage graffiti.