Wiltshire Police
Officers are expected to be wearing protective clothing,
Sergei and Yulia Skripal visited restaurant before they were taken ill.
He was given the all-clear after specialist tests.
The pair remain in a critical condition in hospital.
Russian Embassy accuses government of trying to “muddy the waters”.
Substance tested at Porton Down.
The five things you need to know about politics today.
The allegations include the rape of an 11-year-old boy.
One attendee was arrested for trying to sell a police officer drugs.
20 teenagers in Salisbury were left needing medical treatment.