A restaurant worker who fell ill after drinking 'poisoned' apple juice was charged with assaulting a police officer at a hospital. Lam Chi-hong, 38, allegedly assaulted police officer Clive Walton at Princess Margaret Hospital on Sunday. He was admitted to hospital after drinking apple juice at his home. No plea was taken. Lam left a hospital observation ward and was remanded in police custody. The case was adjourned to November 22 for further investigation.