The swiftness of emergency services is a critical factor to saving lives. But to intervene successfully, emergency services need to know exactly where the incident is. This is an area where mobile phones enabled for Global Navigation Satellite Systems (GNSS), such as Galileo, can help. But to what extent, if any, is regulation in this area useful or even necessary? This question was the subject of a public hearing run by the European Commission in Brussels on 7 May 2014.