The Health and Safety at Work etc Act 19747
 section 2, requires all employers 
to conduct their work so their employees will not be exposed to health and safety 
risks, and to provide information to other people about their workplace which might 
affect their health and safety.

Section 3 places duties on employers and the selfemployed towards people not in their employment and section 4 contains general 
duties for anyone who has control, to any extent, over a workplace. In addition, the 
Management of Health and Safety at Work Regulations 19998
 require employers 
to assess the health and safety risks to third parties, such as tenants who may be 
affected by their activities, and to make appropriate arrangements to protect them. 

When asbestos is disturbed or damaged, it releases tiny fibres into the air. These fibres can easily be inhaled without the person even noticing. They can become trapped in the nose or throat, or they can work their way into the lung or digestive tract. Once the fibres enter the body, this is when they start to cause health problems.