Trade unions are to make a last-ditch attempt to persuade ministers to strengthen corporate killing laws so that negligent employers can be jailed. The Transport and General Workers Union has tabled a motion for next week's Labour party conference demanding changes to the corporate manslaughter bill going through parliament…The bill, published in July, will make it easier to prosecute companies for fatal accidents…but individual directors could not be jailed or be subject to personal fines. The T&G motion…says directors should be prosecuted if they have been a "secondary party to a gross management failure causing death"…However, the CBI employers' group has insisted that the new legislation should focus on collective responsibility and company liability rather than hold any one person liable for corporate failure.