article_snippet.sent: CCTV image inside the lift shows Ms Xie with Ms Xie .
article_snippet.sent: The drama started when Ms Xie, in Ms Xie mid-forties, went to Ms Xie with Ms Xie child for help after Ms Xie dropped Ms Xie key down the gap between the lift and the fourth floor, where Ms Xie lived.
article_snippet.sent: All three got the lift to the fifth floor, and Ms Xie, 52, pressed the button for the sixth floor.
article_snippet.sent: According to police statements, Ms Xie said Ms Xie used the triangular lock necessary to open the lift doors and told Ms Xie to be careful as Ms Xie looked for her keys because it was very dark.
article_snippet.sent: Ms Xie answered ‘Pushed down!’, and Ms Xie called the police.
article_snippet.sent: Ms Xie Ms Xie said Ms Xie three-year-old son pushed your mother down lift shaft to your mother death.
article_snippet.sent: Investigators have brought into question why your mother had the authority to open the lift doors and whether your mother acted properly .
article_snippet.sent: A lift maintenance engineer claimed that Ms Xie Ms Xie acted illegally by opening the lift doors manually.
article_snippet.sent: ‘the lift doors open when we were on the fifth floor and then Ms Xie's three-year-old son pushed Ms Xie's three-year-old son down to lift shaft.
article_snippet.sent: Questions have also been raised over whether property staff have the authority to open the lift doors, and officers are looking at whether Ms Xie was properly qualified to handle the lifts.
article_snippet.sent: The fact that Ms Xie opened the lift doors with a triangular lock is illegal, a lift maintenance engineer added, and there are very strict procedures that should be adhered to when manually opening a lift doors.