A criminologist has detailed five possible theories behind the disappearance of Nicola Bulley as the search for the missing mum enters its seventh day.
The mortgage broker, 45, disappeared on a dog walk last Friday morning after dropping her two daughters off at school in St Michaels on Wyre, Lancashire.
Her phone, which was dialled into a work call but was on mute with the camera switched on, was found on a bench by a dog walker nearby.
