Jeremy Corbyn continued Labour’s “Build It In Britain” campaign by trying out a new London Overground train at the Bombardier works in Derby

Labour is hiring lawyers to convert its manifesto vows into draft legislation and ensure its plans for nationalisation are legally watertight.

The plan to recruit legal professionals was proposed by Jon Trickett, a West Yorkshire MP, and agreed at a shadow cabinet awayday on Monday, according to a party source.

It is part of a move to project the party as ready for government amid Tory turmoil over Brexit and to assure voters that Labour’s plan to bring rail, mail and water back into public ownership is legally sound.

The party is also considering proposals to devolve more powers to local and regional government. Mr Trickett, shadow cabinet office minister, is to launch a consultation later this year.

Jeremy Corbyn, who launched a “Build it