article_snippet.sent: Many prison officers.'
article_snippet.sent: Government inspectors criticised the prison in 2012 who found it was severely over crowded by 50 per cent.
article_snippet.sent: A Prison Service spokesman told the Telegraph: 'All of the recommendations raised in an externally led investigation have been implemented by HMP Lincoln.
article_snippet.sent: A wider investigation into this incident, which will consider disciplinary action, is still ongoing.'