 Nonetheless, in the UK, the criminal offence of 'aggravated trespass' was introduced in 1994 specifically to address the problems caused to fox hunts and other field sports by hunt saboteurs.Hunt saboteurs trespass on private land to monitor or disrupt the hunt, as this is where the hunting activity takes place.For this reason, the hunt saboteur "tactics manual" presents detailed information on legal issues affecting this activity, especially the Criminal Justice Act.