But schools will be aware of their own particular security needs, through monitoring the number and frequency of incidents such as break-ins, theft and vandalism. The Act also places a duty on employees while at work to take reasonable care for the health and safety of themselves and of other persons who may be affected by his acts or omissions at work, and to co-operate with their employer to enable them to perform or comply with their duties or requirements. It is true that, in certain circumstances, that a school may be sued. This is because of a duty under the Occupiers Liability Act, on those who have control of property to ensure that the premises do not present health and safety risks to those using the premises, whether lawfully or unlawfully. See also Annex E of School Security Dealing with Troublemakers.
Schools can ask a trespasser to leave.
If they refuse to leave, a police officer or authorised person, may remove the trespasser. If the trespasser causes or permits nuisance or disturbance a police officer, authorised person or LEA may bring proceedings. If the trespasser causes a breach of the peace the police may arrest and charge the trespasser. If the trespasser causes loss or damage the school may take civil action to seek compensation. If the trespasser causes deliberate or reckless damage the school should report the incident to the police for possible prosecution of offence of criminal damage.