What is required to prove first-degree trespass?

First-degree trespass involves entering property without permission, which is precisely what is indicated by the correct answer. This aspect is fundamental in defining the act of trespass, as it highlights the violation of property rights. Trespassing emphasizes the lack of consent from the property owner, reinforcing the principle that entering someone's property without their permission is a legal infringement.

In the context of this crime, the absence of permission is what differentiates this offense from other potential actions that may occur on private or public property. The focus on the unauthorized entry underscores the autonomy of property owners over their premises.

The other options, while perhaps relevant in broader discussions about property rights or legal definitions, do not capture the essential element of what constitutes first-degree trespass. Notification to leave pertains to scenarios that may lead to eviction or removal but does not by itself define the act of trespassing. Intent to commit a crime suggests motivation, which may be a factor in other charges but is not necessary to establish trespass. Remaining in an open public space does not relate to the concept of trespass, as public spaces are, by definition, accessible to everyone.