article_snippet: Plan was only thwarted when machine became entangled in razor wire on a security wall and was then spotted by staff at Bedford Prison.
article_snippet: Prison staff spotted machine on razor wire and managed to retrieve machine.
article_snippet: Plan was only thwarted when machine became entangled in razor wire on the security wall at the jail .
highlights_snippet: Plan only thwarted when machine got stuck in razor wire at Bedford Prison .
  