Wearing bright yellow windbreakers that read "from manners to rule," Mariko Tokunaga and Minoru Kojima hit the streets of Tokyo's Chiyoda Ward on a chilly December morning.

The two ward employees are part of a team that patrols public spaces and hands out 2,000 yen fines to pedestrians caught violating the city's ordinance banning smoking on the street.

"We find a lot fewer people violating the ordinance compared with when I started this job" in April 2003, Kojima said.