I don't see where it makes any difference as to why the police were called. They do not have "motives for implementing arrest" other than upholding the law, that's what they do.
Do you see why police are required to demonstrate probable cause before arresting someone? In this particular instance we don't even know for sure what call the NYPD was responding to when they killed Eric Garner. Were the cops called regarding Garner's activities in selling "loosies" or for his involvement in a fight? We also don't know the contents of his pockets which would also be useful in determining whether or not he was engaged in illegal sales at the time of his homicide. I recognize police treat rich white parasites like those who crashed the global economy in 2007 differently from "criminals" like Eric Garner; however, I'm not deluded enough to believe the two responses are unrelated--are you?
Again, you are making emotive claims which you simply can't support with any evidence. You continue to imply the police treated Garner differently than they would have if Garner were white. There is no basis for this viewpoint, no evidence to suggest it could have been the case here.
The police are certainly NOT required to demonstrate probable cause before making an arrest. I don't know who told you that or where you think you learned it, but that is simply not a fact. Police arrest people every day on orders of arrest by the courts and judges whenever warrants are issued, there is no prerequisite for the officer to demonstrate anything other than Miranda rights. If the officer
observes you breaking the law, they can make an arrest without a warrant. This has nothing to do with your guilt or innocence of a crime. They are not required to hold a hearing in the street and give you a chance to plead your case. You will have the opportunity to plead your case before a judge, where the officer will also be available to present his/her side of the story. You see, this is how our system works.
Now... I agree that the findings of the grand jury need to be released to the public. I also think the Garner family has a legitimately potential civil case against NYC and the PD. I'm not defending or attacking anyone here. But Eric Garner didn't die because he was black.