Böker Cop-Tool (mass production version of Wilson Tactical design, other steel, less expensive)
not an edged weapon but a tool (seems laws in Belgium are only applied on switchblades & daggers, all other knives depend on 'intended use' or something like that)....
4,5cm serrated blade, chisel/prybar/scraper tip, cord cutter, glassbreaker. very strong. Leather sheath sucks can buy good kydex ones online.