A reason reader shared with me a correspondence he had with Sam Mateo, California Sheriff Greg Munks. Munks says the raid on the San Mateo poker game was not done by the SWAT team. I assumed it had been due to firsthand accounts that described police in "full riot gear" with their "guns drawn." Also via email I learned that the child seized in the raid was a boy, not a girl.
I apologize for the errors. The other points about the appropriateness of the raid, seizing the kid from his parents, etc. still stand. One more thing: Several regular players at this game have emailed to assure me that the hosts were not cheating or defrauding participants, which police seemed to hint was the real reason behind the raid. If the players are right, the only real justification for the raid would then be the $5 charge on top of the buy-in for refreshments.