Here is a Defcon talk about gun locks and biometric gun safes. I suggest starting it at the 5 minute mark to bypass a lot of useless talk. Oh, ignore the foul language, the demos of defeating biometric gun safe locks is interesting.
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Do lawmakers even know what they are asking, or what they believe they are asking for? Regulations requiring gun safes says more about the ignorance of the regulation makers than anything else. The speaker gives the best advice for keeping children safe from guns at home: take them to the range and teach them how to handle and shoot guns safely. It goes back to an old saying I used when ever I was told by a parent that education was too expensive. "If you think education is expensive wait till you start paying for ignorance."