CRIMINAL TRESPASS. (a) A person commits an offense if he enters or remains on or in property, including an aircraft or other vehicle, of another without effective consent or he enters or remains in a building of another without effective consent and he: 129 Burglary, Trespass, Arson, and Mischief (1) had notice that the entry was forbidden; or (2) received notice to depart but failed to do so.