Secretary for Justice Wong Yan-lung has agreed to attend a Legislative Council panel meeting on Monday to further explain why the Department of Justice decided against prosecuting the wife of Zimbabwean leader Robert Mugabe for alleged assault. In a letter to Margaret Ng Ngoi-yee, the chairwoman of the administration of justice and legal services panel, Mr Wong said he had only been able to touch briefly on the incident on Monday because that meeting's attention was focused on financial matters. 'I and my colleagues would be happy to attend the forthcoming meeting ... to provide further explanation,' he said. The letter said the central government had advised Hong Kong that Grace Mugabe had been granted diplomatic immunity. 'The Central People's Government has further advised that the privileges and immunities granted to Mrs Mugabe included immunity from criminal jurisdiction,' Mr Wong said. Richard Jones, chief photographer with Hong Kong's Sinopix photo agency, claimed Mrs Mugabe repeatedly punched him and tried to wrestle his camera away after he took pictures of her in Nathan Road, Tsim Sha Tsui, on January 15. The Welshman, 42, said he suffered bruises and cuts on his face and forehead inflicted in part by a diamond-encrusted ring Mrs Mugabe was wearing. Ms Ng said yesterday she remained to be convinced by Mr Wong's arguments: 'I have looked at those regulations, and frankly I cannot identify the provisions which give us the power to grant immunity to Mugabe.' She said that her understanding was diplomatic immunity had to be claimed after an incident, and the Department of Justice could not just grant blanket immunity.