If they can do it on the movies why not do it at home!
Ever wondered how to set up a laser tripwire? Its actually pretty easy to do and no security system is complete without lasers is it! With this set up you can cover an entire house with an array of light beams. And you know what happens next dont you! When someone crosses one of them it sets off the alarm. Practically invisible lasers will never be spotted and you’ll get a warning of an intrusion.