A violent robber from Wembley is facing jail after a heroic schoolboy identified him as the thug who attacked his mother on her doorstep.

Delvin Williams, 33, of Hirst Crescent, and his 36-year-old brother Eugene grabbed Tania Levenfiche around the neck before trying to rip out her earrings outside her home in Hampstead Garden Suburb.

The pair also tried to grab her watch, whilst one of them even kicked out at the family dog who tried to protect his owner.

Mrs Levenfiche’s 10-year-old son Didier, who was witnessing the robbery, activated the house alarm and memorised the suspects’ faces - knowing it would prove vital to the investigation.

The two crooks then fled the scene in a BMW when a neighbour ran out to assist.

But thanks to Didier’s quick wits and attention to detail, both men were arrested in August 2016 and successfully picked out at an ID parade.

Devlin and his brother also took part in a similar attack where an elderly couple both in their 60s, were pinned to the floor on the doorstep of their home in Hampstead before the woman was stripped of her treasured diamond ring - which she had worn for 43 years.

Eugene, from Forest Gate, also admitted carrying out two other violent robberies against vulnerable female victims and an additional count of possessing criminal property.

Both were remanded into custody at Southwark Crown Court and will be sentenced at the same court on February 17.

Didier has received a certificate for his bravery from Westminster Police.