My brother has been missing for 8 years, can we divide his wealth?

Dear Wakili,

Our brother has been missing for eight years, and we now have to address matters relating to his estate on the assumption that he may be dead. We are concerned that taking any legal steps could have serious and unforeseen consequences. We have also been informed that the Registrar of Death might require physical proof of death, such as viewing the body. What legal options are available to us in this situation?