As Grahame Pigney says:
“Apart from making sure that your vote is cast in favour of what is Best for the UK, the facts used by the various political parties and their candidates need to be subjected to a rigorous “reality check”.
A good place to start is to look up the claim or rebuttal on FullFact. This is a fact checking site set up in 2010, now run as a charitable organisation, which has been consistently reliable in checking out statements made by politicians, pundits and the media.”