These are the dramatic scenes as a pair of criminals, part of a south London gang, snatch a woman's mobile phone while she walked along a busy street.
The footage is captured by a cyclist who is riding along the road outside Lambeth College in south London.
The woman is talking on her smartphone when the men spot her. They perform a highly-illegal u-turn before mounting the pavement. The pillion passenger twists his body as the moped pulls up beside the stunned woman and wrenches the handset from her grasp.
The cyclist turns his head to continue filming the brazen theft, which was one of a growing number of similar crimes where gangs use speed to snatch high value items such as mobile phones, handbags and items of jewellery.
The Metropolitan Police has issued an urgent warning to members of the public to make them aware of this type of crime.
The Met and the City of London police have deployed vehicles with automatic number plate recognition systems to identify stolen mopeds which are used in such attacks.
They have just released dramatic new footage of the theft outside Lambeth College on July 31, 2013.
Courtney Morgan and Walid Hnida saw their victim and ruthlessly targeted her for her mobile.
Detectives discovered that Morgan and Hnida formed part of an organised criminal network.
The gang targeted mostly women during their crime spree, including one who was heavily pregnant.
They operated across Wandsworth, Lambeth, Richmond upon Thames and Hammersmith and Fulham in south and west London.
One woman was punched in the face and another was dragged along the pavement as she tried to keep hold of her phone which was eventually stolen.
Another woman was pulled onto the hot exhaust of the bike and her leg was so badly burnt she needed hospital treatment.
Officers believe that during the spate of thefts, the gang managed to steal phones and other electronics worth an estimated £120,000.
