Bicycle thefts in Madison have dropped 30 percent in recent years, and police say one reason might be a new program designed to help track down thieves. Police say about 500 bike thefts were reported citywide in 2007. That number fell to about 425 the next year and 350 last year. The decrease coincides with a “bait bike” program launched by the University of Wisconsin-Madison?s police department. The program involves an unspecified number of bikes fitted with GPS tracking devices and left at various spots around campus.