Swarthmore College has long been noted for their commitment to social justice and peaceful protest.
President Valerie Smith and Amstutz were not available for questions.
In a statement, Smith said while peaceful protest and free speech have been a proud tradition, students prevented Amstutz "from completing all but the most menial of tasks and restricting his movements and rights," which was against the student-conduct policy.
About 80 students participated in the Feb. 24 protest in Parrish Hall, which lasted about four hours. During that time many students came and left to attend classes. Those in the office did nothing inappropriate and actually helped Amstutz shred documents, said Will Marchese, 18, from Wheaton, Ill. one of the students who was cited.
The protest was in response to a referendum held by the group in which 80 percent of those who participated voted to divest fossil fuel investments from the endowment, he said.
"There were a lot of people in that office, not just the five," Marchese said. "Even just a warning goes against college values."
The group broke up and about 25 students then staged a "die-in" outside of Kohlberg Hall, where the college's Board of Managers was holding a meeting, Marchese said.
"I was really disappointed and confused," said Stephen O'Hanlon, a senior political science and sociology double major from Downingtown who was cited. O'Hanlon said for all but a few minutes, he was in the hallway outside the office and acting as a mediator with public safety department. He was never asked to leave, he said.
The action has sent a chill on and off the campus as students and alumni view the citations as a way to suppress student voices.
The campus has come together around the issue of climate justice and the right to protest, said Marchese.
"You can feel a deep frustration with the administration on this," O'Hanlon said. His four years at Swarthmore have instilled a deep sense of responsibility to take action on issues, he said.
While the college response has brought the issue of protesting to a head, the bigger issue is still the issue of fossil fuels divestment, O'Hanlon said.
"The President of the United States has partnered with an industry that threatens out future and we are continuing to invest in that industry," O'Hanlon said.
At a Friday meeting, the faculty voted 53 - 9 to support a partial divestment proposal very similar to the student referendum, O'Hanlon said.