"The State, no less than a private owner of property, has the power to preserve the property under its control for the use to which it is lawfully dedicated."

—noting that "people who want to propagandize protests or views" do not have "a constitutional right to do so whenever and however and wherever they please

Id. "[T] he First Amendment does not guarantee the right to communicate one's views at all times and places or in any manner that may be desired."

S Ct 698, 17 L Ed 2d 559), Mr. Justice Black delivered the opinion which affirmed petitioner's conviction for "trespass with a malicious and mischievous intent" upon the premises of the county jail.

The Academy acted within its rights when it ejected defendants from the graduation ceremony once they began heckling Negroponte.

—cited by defendants, the trespass convictions of persons demonstrating on county jail property were upheld.

Even with respect to public property, the public's use of that property for First Amendment activity may be restricted, if not actually prohibited.

The Court was careful to provide, however, that its holding in Mosley "is not to say that all picketing must always be allowed. We have continually recognized that reasonable `time, place and manner'regulations of picketing may be necessary to further significant governmental interests. "

—holding that demonstrators at a jail trespassed based on finding that the jail was not open to the public, that is, it was not a traditional public forum