He was known for the assistance that he gave to Jews during the war, providing false papers so they could escape the Nazis and their collaborators.

[4] After the fall of France in June 1940 Belbéoch fell back on Clermont-Ferrand, then Lyon, with his comrades.

They wanted to join General Charles de Gaulle, and wandered in Sète, Toulouse and Bordeaux in an effort to cross the border into Spain, but eventually returned to Paris.

[1] Albert Ouzoulias and Robert Deloche advised Belbéoch to infiltrate the Parisian police.

Belbéoch joined the commissariat of the 12th arrondissement of Paris, in which position he could help members of the Resistance to gain false papers, and could help persecuted Jews.

He made contact with the caretakers and office boys who worked for the Organisation Todt, and through them gained access to records of Jews who were subject to house arrest.

[1] On 16 July 1942, the day of the Vel' d'Hiv Roundup, French police arrested Belbéoch's Jewish fiancée Claudine Kaufmann and her family.

[6] Belbéoch was deputy mayor of Joinville-le-Pont in the left-wing administration headed by Guy Gibout (1977–83).