@Cynic_999 - you obviously follow the news far closer than I do, as you're talking about a case I haven't heard of - and then abusing it to make an egregrious personal attack on me. Now, I don't claim to always make the best reasoned arguments (I'm not by nature a political animal), but I do at least try.
Anyway, let;s have a look at what you've said - so, the police shot an innocent on one occasion (and if there's been one, there may possibly have been others), but have failed to collar a lot of 'known suspects' of terorism on numerous occasions, until after something tragic has happened. So what's YOUR explanation for this? Do you think that the police en masse don't want to nab terrorists before they hurt someone, but are quite OK with going in guns-blazing against innocents?
Or could it be that one the occasion you speak of a small number of police went off the rails and handled a situation badly whilst elsewhere the bulk of the police - human beings like you and I and just as variable as everyone else in society - are doing their damndest to try to tackle terrorism but can't do so as effectively as they'd like because they are bound by due process of law, which they respect?
You tell me which sounds most logical and likely. Not being in the police force myself, I can only speculate logically on the matter, and might, of course, be wrong. If you have actual information on the subject, let's see it and discuss it reasonably - is that OK with you, or do you just get your jollies flaming folk?