Expero pairs an engineer with a lawyer: David Royer, a chemical engineer registered on the national register of judicial experts under number EXP1961723, works alongside the jurist Els Bouchet, which is a structure suited to work that ends in court rather than in a report. Royer’s registered specialisms run across fire, building fires, industrial fires, machinery and vehicle fires, fire damage, fire safety, accelerants, and gas, industrial and machinery explosion, alongside chemistry. The practice states more than thirty years in fire, damage and chemical expertise, and works from Linter in Flemish Brabant.