Adrien Sari from CEA talks about the mobile Photofission technology that has been developed in the ENTRANCE project and how the partnership with Smiths Detection's 7 MeV mobile X-ray scanner has resulted in this world first. Although the threat of Special Nuclear Materials (SNM) being smuggled across borders into Europe is not a daily occurrence, the risk level is high, so new technologies like these offer significant benefits in the fight against organised crime and terrorism.