(4) Pri ugotavljanju, ali je posestnik ravnal s primerno skrbnostjo, se upoštevajo vse okoliščine pridobitve, vključno z naravo strank, plačano ceno, dejstvom, ali je posestnik preveril katerega od razumno dostopnih registrov ukradenih predmetov kulturne dediščine in katere koli druge ustrezne informacije ter dokumentacijo, ki bi jih mogel razumno pridobiti, in ali se je posestnik posvetoval z dosegljivimi institucijami ali ukrenil kar koli drugega, kar bi razumna oseba storila v takih okoliščinah.
(4) In determining whether the possessor exercised due diligence, regard shall be had to all the circumstances of the acquisition, including the character of the parties, the price paid, whether the possessor consulted any reasonably accessible register of stolen cultural objects, and any other relevant information and documentation which it could reasonably have obtained, and whether the possessor consulted accessible agencies or took any other step that a reasonable person would have taken in the circumstances.