ANKRAH AND ANOTHER v. HANSEN AND ANOTHER Customary law—Family property—Accountability—Jurisdiction of the court—Head of family's immunity to account not precluding courts from assuming jurisdiction where circumstances justify it—Party seeking court's jurisdiction to show by pleadings circumstances justifying assumption of jurisdiction before deposition of head—Pleadings disclosing straightforward action for account against head of family—Whether disclosing exception to head’s immunity to actions for account.