Twelve days after the mum-of-two's disappearance, what has the investigation uncovered? Head of SGI marine search team: “I don’t think she fell into the water”, Lancashire Police’s caution over harmful speculation, and a warning for ‘amateur vigilantes’ visiting the area. The Evening Standard's Crime Reporter John Dunne discusses:

• What we know about Nicola’s disappearance
• How police have used helicopters, underwater drones, and CCTV footage
• How long will divers continue their search?
• Why Nicola’s disappearance is so unique
• The fractious relationship between the police and specialist SGI divers
• Why ‘amateur vigilantes’ have been told to stay away

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