Woman's hand severed by HDB flat lift

I am shocked by this piece of news. There are safety features which should have prevented a terrible mishap like this. To think that sometimes I use my hand or arm to knock and trigger the lift door to reopen for neighbors to share the elevator ride. Now I am feeling this is a potentially risk act.

The HDB must give a public accounting why this had happened and what measures are put in place to prevent this from recurring. It is very bad if people start to become afraid to use our lifts. The overwhelming number of lifts would operate fine but you never know which one will chop your arm off just like this one.