The security that let her through should be sacked! Or is this a new policy by SMRT that you are allowed shopping trolley into the trains now?
There is no way to push the supermarket's trolley through the paying gate without the control room staff activating the wider gate meant for wheelchair/pram.
Hence the woman is not 'illegal' in that sense, but the SMRT staff probably think that was an over-sized pram and let it through.
Or that woman scolded the staff stupid, and not wanting to be stupid, they opened the wider gate for her?
So now is a case between the supermarket and SMRT ?