He excerpts those parts most relevant to his point, and then includes a link to the entire article so his readers can decide whether they regard his excerpts as fair. In most cases, his excerpts agree pretty well with the broader points in the article. In a few cases they don't and readers' comments call him out on that.
Perhaps your concern is that people will infer that because there are occasional reports of cops doing bad things, there are probably be many more times when cops do bad things that are not reported. Perhaps some people will draw such inferences, but that's not the inference I draw. Rather, I draw inferences from the fact that even when cops' bad actions come to light, there's little or no desire on the part of there departments to hold them accountable. To my mind that indicates very strongly that even if such incidents may be "isolated" today, they are unlikely to remain so.
Suppose that a group of cops who have a warrant for 742 Evergreen Terrace bash down the door of 744 Evergreen Terrace and accost the occupants therein. Is there any reason why any and all cops involved on the raid should not be prosecuted for robbery? Such an officer is not lawfully serving a warrant. Forcibly entering a dwelling and accosting the occupants is robbery, and the fact that the cop has a warrant for some other dwelling is no justification. I see no reason for the punishment of a cop who engages in such conduct any less harsh than the punishment for anyone else who does so.
You and I may have different perceptions about how often the above sort of thing happens, but whether such things happen once a weak or once a decade, in those cases where it does happen, can you articulate any reason the cops shouldn't be prosecuted for robbery? I'm not talking about cases where a warrant which should have said 742 Evergreen Terrace got mistyped as 744. I'm talking about cases where the warrant clearly identified an address which was different from the one that was raided. How many (if any) cases can you identify any such cases in which cops searching an address not on their warrant were actually prosecuted as robbers? Can you offer any good reason why the number of stories of cops who raid the wrong address should significantly exceed the number of stories of cops being prosecuted for doing so?
Of course he does. He has an agenda.
I draw inferences from the fact that even when cops' bad actions come to light, there's little or no desire on the part of there departments to hold them accountable.
Of course you do, you have the same agenda. Have you ever taken the time to do a "cop sentenced" search? What can you infer from all those cases?
Suppose
A simplified hypothetical does nothing to support your LIEberTARDian case.