 Measuring impacts of taking down fare abuse operations is difficult, because even large swiper rings ‘sell’ very few fares compared to natural day-to-day fluctuations of the 8.0 million riders on NYC's system due to reasons like weather or special events.The most important evasion fighting tool is arguably comprehensive and functioning legal frameworks to deal with evaders and counterfeiters.MTA's Rule of Conduct (62) has banned evasions since the 1980s, rules having been established mainly for arresting persons likely to commit other crimes (assault, graffiti).