The de facto regime engaged in substantial interference with freedom of movement, association, expression, and assembly.

However, "the prohibition of expression of one particular opinion, at least without evidence that it is necessary to avoid material and substantial interference with schoolwork or discipline, is not constitutionally permissible."

It also condemned the faculty for in-fighting and an indifferent attitude toward students, as well as actions ranging from "substantial interference with the educational mission to petty harassment" of students.

Mr. Cheney argued then that such fact-finding presented "fundamental separation-of-powers questions" and threatened "substantial interference with vital executive branch functions."

The first substantial interference followed the 23d designation in October 1965 by the new Landmarks Preservation Commission, established the previous April.

This was used to justify substantial military interference in politics.

Consequently, in a public place the plaintiff must prove how there was a 'direct' and 'substantial' interference with their personal autonomy.

Plaintiffs must show that the offender had intentional physical contact with the chattel and that the contact caused some substantial interference or damage.

John J. Corgan, a lawyer for the medical center, said, "There was substantial, extraordinary parental interference that severely impeded the medical staff's ability to do their jobs."

It results most commonly from a drop in maternal blood pressure or some other substantial interference with blood flow to the infant's brain during delivery.