A company called Qylur has developed the Qylatron automated security checkpoints for sports and concert venues. Patrons place their bags and other personal belongings in a small compartment, then walk through a traditional metal detector. On the other side their scanned items are waiting for them behind a locked door that’s only accessible using their own unique ticket. This helps prevent theft, but also allows the items in question to be locked down until they can be manually searched by a security officer. The capacity of those scanning compartments would have to be increased for larger hubs to accommodate carry-on luggage.”]
Source: https://gizmodo.com/self-checkout-security-checkpoints-could-replace-touchy-1467660998