A Westminster neighborhood is safer thanks to city police and an area SWAT team raid of an illegal gambling den on Thursday, June 3. The warrant served on the Yuba Avenue “slaphouse” — a nickname for gambling establishments because of the slapping noises coming from the occupants inside who frantically push buttons on video game-like gambling machines — yielded five suspects. They were arrested for various gambling- and narcotics-related offenses, as well as for other arrest warrants. Police seized cash, gambling machines and narcotics at the house, said Westminster Police Cmdr. Cord Vandergrift, who helped lead the multi-agency effort. The multiagency…