I have had an incredibly terrible time with the police. I get stopped roughly 1 time per week and have also had incidences were it has happened more in one day.
One time, I was walking down the street and heard running behind me. The police caught up with me just as I was about to enter my apartment and 5 officers proceeded to surround me not allowing me to go into my home.
They tried to search my bag and pat me down - even when I asked them to show their badges and if they had a warrant - they ignored me.
(yes I have this on video)
There was also a Japanese guy taking a piss against a wall when they ran past (which is illegal) - I was just quietly walking home. Yet they chose to target me.
I really hope these guys win their case and I hope it empowers others to report and do the same.
Many foreigners come to japan to live - they also behave better than most japanese (not loud, not drunk, not dropping litter, not pissing against the walls) - we just want to live quietly and enjoy the beauty of japan.