Serial Rapist.

I've just been reading a 'breaking news' story on the Bbc website about a serving Met policeman who has been found guilty of numerous rapes and sexual assaults, going back over a period of 20yrs. How could that go on for such a long time undetected. It's not unusual ro read about men in power taking advantage of their position. The Met seem to get more than their fair share of mentions. Surely the people he worked with suspected  something.  When you think, the police are there to protect us, a place to go if we feel threatend, how do stories like this make you feel, especially if you're a woman.