article_snippet: The incident was captured by a fixed onboard video camera on Martin Goodyer's work van.
article_snippet: The 43-year-old security company sales director shared the footage on Facebook and has said The 43-year-old security company sales director is willing to give the details to police. '
article_snippet: Martin Goodyer's said. '
article_snippet: The incident took place just after 8am,  although Mr Goodyer's clock time shown on the screen incorrectly shows 5.08pm.
article_snippet: Martin Goodyer's added: 'We have video cameras positioned on We works' vans which capture four hours of footage in short bursts and that's why I caught it. '
article_snippet: I've also got the registration details of the van
article_snippet: should the police want the police.'
article_snippet: A British Transport Police spokesman said the force would be investigating the footage.
article_snippet: A British Transport Police spokesman said the force would be investigating the footage .