Following the rotation system in place at that time, Osu, an ethnic Bajau, held the post for two years representing the Muslim bumiputras of Sabah.
Until 14 July 2005, he was a member of a ruling United Malays National Organisation (UMNO).
[8] The casino obtained a judgment in the High Court in England to recover debts owed by Osu.
The High Court at Kota Kinabalu refused to register the judgment on grounds of public policy.
However, in 2007, the Court of Appeal ruled in favour of the casino allowing the debt to be recovered.