Hawaii's law enforcement and emergency agencies are holding a free public expo this Saturday, aimed at families, job seekers, and anyone curious about how police technology actually works.

• The event runs Saturday from 10 a.m. to 4 p.m. at the Hawaii Convention Center.
• Fire departments, police, the FBI, the state Department of Law Enforcement, and private security companies will all be on hand.
• Agencies are actively recruiting, with openings across first responder units and state government offices.
• The state's new drone-based first responder program will be on display, with officials aiming to counter fears that it amounts to mass government surveillance.
• Contests, prizes, and giveaways are planned to draw crowds.

Outlook: Expect the drone and surveillance questions to dominate public interest, since that is where the trust gap is widest.