Detectives investigating the disappearance of York University chef Claudia Lawrence are expected to reveal a series of new lines of inquiry on TV's Crimewatch programme tonight.
Claudia's sister Ali Sims is also interviewed on the BBC programme and she talks of the family's agony of not knowing what has happened to her
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Who's in charge and what happens if there's an international crisis? Here are answers to key questions about the dissolution of parliament.
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The longest general election campaign in modern history begins with the dissolution of Parliament today.