Hans Risseeuw is a senior consultant for signalling, safety management and assessment, with wide international experience in systems and products Europe-wide. He has extensive experience in developing and creating Automatic Train Control systems as well as in evidencing their safety by means of safety cases. Hans was involved in putting into service the safety management system of Infraspeed for the Dutch section of the High Speed Line South project. Since its foundation Hans has been involved in the notified body Railcert, where he held the positions of assessor and lead assessor. This enabled him to gain extensive experience in assessing evidence of safety (safety cases) and in European and national certification programmes (including ERTMS, Betuwe Route, Hanze Line and several rolling stock projects).