The brother of police officer Adele Cashman, who died chasing thieves through Belsize Park, will run the London Marathon in her memory.

In what is being billed as Adele’s Final Run, brother Adam Cashman and others will embark on the 26-mile trek to raise money for neo-natal charity Cots for Tots.

Det Con Cashman, 30, had tried to enter the London Marathon up to five times without success and had planned to run the Edinburgh Marathon next year for the Bristol-based charity.

Donations have flooded in, with more than �2,200 already pledged to the cause.

Writing on charity website Justgiving, Mr Cashman said: “I want Adele’s memory to live on forever, Please help me complete this goal for her.”

Det Con Cashman, known to colleagues as Del Boy, was on duty on November 5 when she was called to the scene of a phone snatch in Belsize Park Gardens.

She leapt out of the car and set off in pursuit of two teenagers, but she collapsed a few paces from her vehicle and died shortly afterwards in the Royal Free Hospital in Hampstead.

To sponsor the runners visit www.justgiving.com/Adele-Delboy-Cashers-Cashman