Derek Bass was cited for fare evasion by undercover MBTA agents at the Park Street T Station recently.

Though the loss from fare evasion is hard to calculate, planners estimate it may be in the tens of millions of dollars annually.

Transit Police have devoted increasing attention to the problem, with officers writing a record 3,482 tickets last year.

Paul Cravedi (pictured) said he was outraged by fare evaders using electronic gates in rapid transit stations.

The new law makes the fine $50 for a first offense and requires payment or a request for an appeal hearing within 30 days.