Given the state and costs of international roaming this is when you are least likely to have your phone. "Sorry officer, my phone is at home. Or is carrier lock

Given the state and costs of international roaming this is when you are least likely to have your phone. "Sorry officer, my phone is at home. Or is carrier locked and given roaming costs it is going to be cheaper for me to buy a phone and pay as you go plan here. Are they any shops in the concourse that you might suggest for getting one?" A pocket camera and list of phone numbers completed the set. Obviously don't lie if you actually have a phone, but not having one is not sufficient ground for detention.