The most common form of penalty for train surfers is a fine, however, in some countries, such as the United States or Canada, train surfers can be not only fined, but imprisoned too.

Subway surfing is dangerous, it is illegal, and it can be lethal. The NYPD will continue to do everything we can to stop this reckless behavior  but it starts with sound decision making. So be smart, be safe, and always ride inside the train.