Serge Maitrejean of Smiths Detection speaks about how the developments made to their mobile X-ray scanner in the ENTRANCE project deliver three key advantages to Customs looking to identify illegal goods hidden in containers. The first improvement is in how deep the X-ray can see into the container, secondly it can now look through materials that are used to stop drugs or explosives being detected and finally it can determine the chemical make up of materials more precisely, making it easier to identify what is in there.