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How James Wharton's private member's bill could become law

16 May 2013 Last updated at 17:46 BST

Backbench bills have to clear the same path as other bills, but the problems for them is a lack of Parliamentary time, unless they win some backing from the government and party whips.

Gary O'Donoghue explains the hurdles - and help - that James Wharton's private member's bill for an EU referendum will face.