Accidents at work are sadly all too common. As an employer, you should be doing all you can to prevent these. You should also ensure that you have good policies and procedures in place to deal with any accidents that occur. Employees, on the other hand, have a duty to act responsibly and not take unnecessary risks.
Given the importance of this subject, my colleague Jim Herd, who has particular expertise in health & safety, has written an article outlining the relevant legal issues. He has also provided some practical tips on how to prevent and deal with accidents at work which I hope is of interest.