Which of the following must be true for the crime of Entry into a Locked Dwelling?

The correct assertion regarding the crime of Entry into a Locked Dwelling is that the individual must have entered a dwelling while it was locked. This element is critical because it establishes that the entry was unauthorized and demonstrates the intent to invade someone else's privacy and property rights. When a dwelling is locked, it signifies that the owner has taken steps to secure their home, making any unauthorized entry more serious, as it indicates a violation of both physical space and the legal right to control access to that space.

In terms of the other options, entering without the owner's knowledge could apply in many situations, but it isn't a necessary requirement since there are circumstances where an individual may enter a locked dwelling with knowledge. Gaining permission prior to entry contradicts the definition of unauthorized entry and thus is not relevant. Lastly, the focus on public dwellings does not align with the specific crime of entering a locked dwelling, as the crime encompasses private residences, which are inherently about a theft or violation of private property rights rather than public access areas.