It is a hit and miss affair; it seems to work at LHR 3 out of 5 times for me for T4 and T5. My wife and daughter are also registered…….and now some numbskull has decided that you have to be 18 to use it so my daughter cannot use it as she is only 16. However, I expect that as the whole organisation is so badly run, she would be able to pitch up and get through as I doubt anyone has had the technical ability to get the IRIS scanner to check the birthdate of the passeneger and deny passage if under 18!
BHX has the best scanner. It is rarely switched on and both the entry and exit gates are open…….you can walk straight into the UK unchallenged!! Much better than hanging onto a lorry axle for 3 days!