Andrew Sissions from Hackney Council tells ITV London that the properties on Amhurst Road were deemed to be so dangerous that they had to pull people out of a restaurant in the middle of their meals.
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The victim of a "violent and sustained attack" on the top deck of a London bus has been named as Archie Sheppard.
Transport for London has made the badges and accompanying cards permanently available after a successful trial in autumn last year.
A rapist has been given three life sentences for a vicious attack on an 81-year-old woman minutes after he sat next to her on a bus.