A third party is suspected of having instructed an Indonesian maid to take unauthorised video pictures of actress Lydia Shum Din-ha in the intensive care unit at Queen Mary Hospital, a court heard yesterday. Prosecutor Chu Chung-keung told Eastern Court that the helper, Yuyun Triyuliarti, could also be charged with a more serious offence relating to the breach of her conditions of stay. Yuyun, employed by an Eastweek magazine deputy editor, is charged with taking video pictures of a patient in hospital without consent on October 1. Shum has been in hospital for a major operation on her liver and gall bladder since early last month. Mr Chu said police realised on Tuesday that the accused was a domestic helper working for a magazine employee and suspected another person is involved. A police officer in charge of the case said outside court that one more person might be arrested. Yuyun, who had a defence lawyer, tried to plead guilty to the charge, although she was not asked to make a plea. Mr Chu urged acting principal magistrate David Thomas to revoke bail, saying that allowing her to go would hinder the course of justice. But Mr Thomas refused, saying the police did not give sufficient information or reason to do so. 'I learnt more about the case from the newspapers than what you have told me,' Mr Thomas said. He said the police had already granted her bail and any hindering of justice would have already taken place. Mr Thomas granted the maid HK$1,000 bail and ordered her to surrender her travel documents. The case was adjourned to November 1 in the same court.