The High Court will hear the committal proceedings brought by the attorney-general (AG) against former Umno Supreme Council member Lokman Noor Adam for allegedly intimidating a witness in the 1Malaysia Development Berhad (1MDB) trial of former prime minister Najib Razak on March 18.

The witness is Najib’s former special officer, Amhari Efendi Nazaruddin, a key witness in the case...