This dramatic footage has surfaced of a moped gang ramming a stolen car into a luxury jewellery store, before stabbing a have-a-go hero earlier this year (March 26).

The jewellery store in Mayfair, London was subject to an all too common raid, but a would-be hero put himself in harm's way when multiple assailants initiated the raid.

Builder Petar Dimov needed eight stitches to his knee when it was slashed with a samurai sword wielded by one of the thieves.

Dimov now walks with a limp and also battled a lung infection caused by the stabbing, a court was told.

This is the dramatic footage of a moped gang ramming a stolen car into a luxury jewellery store before stabbing a have-a-go hero who tried to stop them with a samurai sword and slashing his knees with an axe. Builder Petar Dimov needed eight stitches to his knee, now walks with a limp and battled a lung infection caused by the stabbing, a court was told.