A twelve-year-old boy was arrested in Petaluma on July Fourth after leading police on a brief, half-mile chase on a gas-powered minibike. The Petaluma Argus-Courier reports, the incident began when an officer spotted the juvenile riding on the wrong side of the road, eventually crashing the bike and fleeing on foot before being detained near the SMART train station. The youth escaped serious injury and was released to a parent on suspicion of ev…