The Japan Times Online - Monk with JCP fliers ruled not trespassing
This story highlights some odd things about Japan:
* Buddhist monks can be politically active (for the communist party)
* going into a condo complex to put flyers in letterboxes could be much more trouble than it is worth. (This monk was detained for 23 days for this, presumably after his arrest.)
* the lesson (especially for foreigners): try to avoid being arrested for anything in Japan!