This is the shocking moment a crazed commuter launched an apparently random attack on a woman - pushing her on to the tracks of the London Underground.
The 23-year-old victim struck up a brief conversation with the thug and following a trivial row over the man's hat, he turned and shoved her on to the rails on the Northern Line at Leicester Square.
She only missed the live rail by inches, and was able to pull herself back onto the platform with the help of other travellers before the next train came down the platform.
Injuries to her side were so severe, witnesses initially thought she had been stabbed.
BTP Detective Sergeant Fin Egan, the investigating officer, said: 'This was a dangerous and reckless act which could have had grave consequences had a Tube train been approaching.
'The platform was busy at that time and I am appealing for anyone who recognises the man in the images or who witnessed the incident to get in contact.'