The Committee on Rights and Responsibilities yesterday separated one student until September 1971 and required Michael Kazin '70 to withdraw until February 1971 for their part in the April 9 disruption of the Center for International Affairs Visiting Committee.

The rights committee announced disciplinary decisions for only 16 of the 20 students charged. It acquitted one student, admonished three, placed one on warning, and suspended requirements to withdraw for nine others. The four other decisions will be announced today.

The CRR also decided that student demonstrators do not necessarily have to be warned that their actions are illegal in order to be prosecuted for them.

The students have three days in which to appeal the CRR's "findings of fact" and the accompanying punishments. If they do not come forward during the appeal period, or if their appeal is turned down, their punishments will take effect immediately afterward, James Q. Wilson chairman of the CRR, said yesterday.

Broke up Meeting

The disruption occurred when 200 protesters entered the CFIA, forced their way past University officials to a second floor seminar room, and caused the breakup of the Visiting Committee meeting.

Following that disruption, most of the demonstrators moved to Mallinckrodt parking lot and blocked Robert R. Bowie, director of the CFIA, from driving away in his car.

They pursued Bowie to Harvard Square, where they trapped him for 20 minutes inside a taxi cab. Afterward, ten students followed Bowie and Samuel R. Williamson, assistant to the Dean of Harvard College, down Church St., allegedly harassing them.

Charged for Crowd

When Bowie-in consultation with Archibald Cox '34, University spokesman-brought charges against, the 20 students two weeks later, he indicted them for "joining in a noisy and boisterous crowd" with "intent to disrupt the normal conduct of the [Visiting Committee] meeting." He also indicted several of them for the subsequent incidents.

But "most of the evidence [available to those who brought the charges] was photographic, and thus [any] judgment about a given student's participation must depend heavily on where he happened to be when photographed," the rights committee's seven-page announcement stated.

The committee dropped all charges relating to the Mallinckrodt and Harvard Square incidents-except those against Kazin-because the photographs did not show the students in the act of obstruction, the statement added.

The decisions on the disruption in the CFIA itself rested primarily on how close to the seminar room the student was shown to be. "Those near the center of the demonstration could hardly have been unaware of its nature," the CRR statement said.

Prior disciplinary records resulting from past demonstrations were a factor in determining a student's punishment, Wilson added yesterday.

The punishments were ranged as follows:

three admonitions to students "with no prior disciplinary record. [who] were on the edges of the crowd, and did not directly associate themselves with the disruption":

one warning to a student on the edge of the crowed who had a prior admonition on his record: