 reveals so much, like if someone is lying, that's the premise of eye detect, a digital lie detector that put me to the test. This is really the key element down here, it's the infrared eye tracker. That camera watches your eyes to see if you are telling the truth. I'm asked to purposely lie about the number I just wrote down. Look at the middle of the screen. Todd Mickelson of Converis says it can be used to screen job candidates. Where you want to know if they have a pass that would disqualify them and type in your name there. It was put on display Monday at the annual International Association of Chiefs of Police Conference in San Diego. It won't continue until it's done. Mickelson says the secret is the pupils. Specifically the pupils get slightly larger. They get larger when you lie. It's a far cry from the lie detectors that measure your pulse. When you lie it requires more mental effort. It's also faster. Mickelson says eye detect can screen thousands in just days. Everyone from job applicants to immigrants. Anyone who needs to screen a large group of people on something that's important such as a visa applicant. Mickelson said even San Diego police were impressed. They're looking at using eye detect to screen potential hires. He says it's 85% accurate at the San Diego Convention Center, Joe Little and News. Public organizations like the Salt Lake City Police Department already use eye direct. However it is against the law for private companies to use those lie detectors on their employees.