Fireworks are displayed on a shelf inside of the San Bruno Rotary Club fireworks stand on July 3, 2013, in San Bruno, Calif.

On Friday, detectives from the Alameda County Sheriff’s Office said they seized about a quarter-ton of fireworks, illegal in unincorporated Alameda County, from a wanted felon during a parole sweep. The bust comes as a tougher county ordinance aimed to rein in this kind of activity is about to set in ahead of the Fourth of July holiday.

In a Facebook post, the Alameda County Sheriff’s Office said detectives from the Eden Township Substation joined California State Parole to carry out an arrest in........

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