en.wikipedia.org
Stop and frisk is infamous in New York, and legal in 23 states. California, where the lawyer you linked has a practice in, is not one of those states. To him and his jurisdiction, it's illegal. In New York and other states, it's legal.
Sorry.
So if we're going to go into the quagmire of "Black child running = Crime happening somewhere", let's do it.
Other than my race, why be suspicious of a
crime? I could have been running for my life, I could have been running to catch a train (which I was!), I could have been running for practice, I could have been running to get to the gas station and get some food, I could have been running to see my girl.
Any one of those are just as likely as crime. If they had no calls, and were bored enough to just go driving around looking for something to do, it was a slow night. In fact when they had me pressed up against the fence, I could hear the police on the walkie talkies shooting the breeze because they were so bored. Nothing was happening that night. So a reasonable suspicion measure is getting harder to meet.
If the only reason they had suspicion in their hearts because it was a black child running, sorry, what I posted comes into play. Due Process isn't eliminated by Stop and Frisk, especially if the only suspicion is dependent on Dark Kid Running. 'Title VI of the 1964 Civil Rights Act' trumps 'Stop and Frisk'.