Parking attendants chased and captured a man suspected of attacks on elderly women.
Detectives today were questioning the 38-year-old about the mugging of Millie Kershaw, 92, who suffered a broken hip and wrist when her bag was snatched last May.
The parking attendants sprang into action yesterday after Pamela Still, 72, was knocked over by a bag snatcher in Palmeira Avenue, Hove.
The former Brighton General Hospital nurse suffered a broken arm and ankle, plus eye, knee and shoulder injuries.
She was being treated at the Royal Sussex County Hospital today.
Members of the public and two attendants chased the suspect along Western Road, Hove, as he tried to jump on to buses and hail taxis to escape.
The attendants grabbed and held him until police arrived.
Detective Chief Inspector Martin Cheesman, head of Brighton and Hove CID, said: "These offences are some of the worst we come across and we would like to express our gratitude to the attendants and members of the public who helped in this incident."
Detective Constable Sam Smith, investigating the offence, said: "We never encourage people to have a go to ensure their safety but those who helped yesterday were brilliant."
Millie Kershaw made headlines with her fight for recovery and is now back in her Brighton home.
Her granddaughter Suzi Tully said: "Millie is doing fine but she doesn't go out shopping on her own any more."
She was inundated with flowers and get-well cards from as far away as Belfast.
Millie received £1,000 from people sickened by the robber who grabbed her bag containing just £2 and groceries before pushing her to the ground in Hamilton Road, Brighton, Sussex Police put up a £10,000 reward and a private security firm offered to escort Millie every time she went out.
The Argus printed hundreds of appeal posters.
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