Delisle's search for exactitude and intellectual honesty entangled him in a legal dispute in 1700 with Jean-Baptiste Nolin, a fellow cartographer. Noticing Nolin had used details that were considered original from his "Map of the World", Delisle took Nolin to court to prove his plagiarism. In the end, Delisle convinced the jury of scientists that Nolin knew only the old methods of cartography and must have stolen the information from Delisle's own manuscript. Nolin's maps were confiscated and he was forced to pay the court costs of the case. The high scientific quality of the work produced by the Delisle family contrasted with the workshop of Sanson. While Sanson knowingly published outdated facts and mistakes, Delisle worked to present up-to-date knowledge.