Sorry. I don't buy it. I've been black for 33 years now.
And don't believe I've ever come across this so called "Institutional Racism" you speak off. Now I'm not saying that racism doesnt exist (that would be stupid. As it exist all over the world. Its a part of life and will never be eradicated). What I will say is that I refuse to believe that it is as bad as many like to make it out to be.
You may not have come across that and suggesting institutional racism doesn't mean all police officers are racist.
It was however far less than 33 years ago, in 1998 that the enquiry into the Met and it's handling of the Stephen Lawrence investigation concluded that it was institutionally racist and considering that case, I wouldn't call the outcome of Sir William Macpherson's investigation "Lazy".
https://en.wikipedia.org/wiki/Murder_of_Stephen_Lawrence