What countries' use professional jurors?

Countries that utilize professional jurors include Germany, where they are part of the judicial system in serious criminal cases, and Japan, which employs a mixed system of professional judges and lay jurors known as "saiban-in." In these systems, professional jurors bring legal expertise to the deliberations, while lay jurors provide community perspectives. Other countries, such as Belgium and Italy, also incorporate professional jurors to varying extents in their legal processes.