Rory Moroney is at the center of a Long Beach police lewd-conduct sting that a judge found to be discriminatory. (Luis Sinco / Los Angeles Times)Sitting in cars along the edge of the park, four Long Beach police officers waited for the right time to pounce.

The innocuous signal that spurred them to action came when they saw a middle-aged man close his laptop and head toward a public restroom known in the area as a place where men have sex with each other. One of the undercover officers followed him inside.

Within moments, police were leading the man away in handcuffs. His crime: exposing himself to the officer.

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