Trying to get answers on Colorado law as to when a person is considered "licensed" to enter property under the criminal trespass statute prohibiting "unlawful" entry. It seems to me clear that posting no trespassing signs at the entrance to a property has the legal effect of nullifying any common law license or privilege to enter. BBM.
Here's a standard jury instruction designed for such charges that may be helpful.
F:126 ENTERS UNLAWFULLY OR REMAINS UNLAWFULLY
"A person “enters unlawfully” or “remains unlawfully” in or upon premises when the person is not licensed, invited, or otherwise privileged to do so. A person who, regardless of his [her] intent, enters or remains in or upon premises that are at the time open to the public does so with license and privilege unless the person defies a lawful order not to enter or remain, personally communicated to him [her] by the owner of the premises or some other authorized person. A license or privilege to enter or remain in a building that is only partly open to the public is not a license or privilege to enter or remain in that part of the building that is not open to the public.
COMMENT
.....
2. When relevant, the above definition should be modified to include an explanation of the following principle, which is also set forth in section 18- 4-201(3):
Except as is otherwise provided in section 33-6-116(1), C.R.S., [relating to hunting, fishing, and trapping,]
a person who enters or remains upon unimproved and apparently unused land that is neither fenced nor otherwise enclosed in a manner designed to exclude intruders does so with license and privilege unless... notice forbidding entry is given by posting with signs at intervals of not more than four hundred forty yards or, if there is a readily identifiable entrance to the land, by posting with signs at such entrance to the private land or the forbidden part of the land. ...."