Security is a prime concern to education authorities, given the duty of care to pupils and the potential for class disruption in the event of burglary or theft. Equipment and documents may not be immediately replaceable, and the need to do so will inevitably place pressure on budgets. Ultimately, this may also have an adverse effect on the level of confidence in and education provided by a school. Vandalism and unauthorised entry remain a major problem. Unprotected doors, windows and rooflights are prime potential entry points, and even unsuccessful attempts to break in invariably necessitate remedial work. Malicious damage, attempted arson and theft of electrical equipment provide strong motivation for opportunist crime.