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Students at Michigan State University recently returned to campus after the shooting that took place at the school on Feb.13, in which three students were killed and one was left in critical condition.

"The violence we experienced on our campus impacted students in different ways, and they are working through the trauma in different ways, too," assistant professor Simone Peinkofer of MSU's Broad College of Business told Fox News Digital. 

"Some students are ready to be back in person — but other students don’t feel comfortable coming back to campus."

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To help the college students work their way back into a schedule, Peinkofer researched best practices about returning to the classroom after a violent event.

She also reached out to her brother-in-law, Deputy Chief Kevin Roman of the Dowagiac Police Department, for some assistance.

Michigan State student kneels after shotoing

A student kneels where flowers were placed at the Spartan Statue on the grounds of Michigan State University, in East Lansing, Michigan, on Tuesday, Feb. 14, 2023. A gunman killed several people and wounded others at Michigan State University. Police said the shooter eventually killed himself.  (AP Photo/Paul Sancya)

Upon returning to the classroom, students participated in a scavenger hunt that involved mingling with one another, teachers, police officers including Roman and a special guest: K-9 Officer Tole.

"I immediately thought about having a K-9 and its handler [to] join and simply hang out with us … [It] would definitely take some of the stress out of my students and [help them] feel safer coming back to the classroom," Peinkofer said.

Tole and students

Police K-9 Tole welcomes Michigan State University students back to class following campus shooting in mid-February. (Dowagiac Police Department)

One of the scavenger hunt requirements was to take a selfie with K-9 Officer Tole (pronounced Toh-lee).

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The recently retired Tole has been with Roman and the the department since June 2015.

Tole and students

Students in assistant professor Simone Peinkofer's class took part in a scavenger hunt that included snapping a photo with Officer Tole. (Dowagiac Police Department)

Tole is said to be a social dog with a calming presence. 

The students figured out "he is really a good friend once they gave [him] treats," Roman noted.

"It's pretty easy for him to just be there as comfort and support for the kids [so they're] not reminded of what just happened," Roman told Fox News Digital.

Michigan State memorial

Michigan State University closed most of its campus at night following a mass shooting that left three students dead. (Jake May/The Flint Journal via AP)

While Deputy Chief Roman said that he did not know what to expect, he was grateful to be able to be there for the students.

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Roman said he's seen the impact that K-9 dogs can have on the community.

Tole and officer

Deputy Chief Kevin Roman and K-9 Tole have been together since June 2015, Roman told Fox News Digital. (Dowagiac Police Department)

"It's a great law enforcement tool for investigations and keeping officers safe, but it's another way we can strengthen ties with our community," he said.

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In his newfound retirement, he's become the regular office dog, but back in the day Tole had some memorable busts, including one that took place during his first day on the job.

tole and officer

Tole recently retired in November 2022 yet continues to come into the office with Deputy Chief Roman. (Dowagiac Police Department)

What started as a normal traffic stop of a driver having the car's headlights off turned into something more.

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After Tole's air sniff, Roman and his team discovered methamphetamine, heroine, a mixture of pills and two stolen hand guns — which later connected the driver to a drug cartel.

Tole and students

"It's pretty easy for [Tole] to just be there as comfort and support for the kids [so they don't] have to be reminded of what just happened," Deputy Chief Roman told Fox News Digital. (Dowagiac Police Department)

Tole is no longer paroling the streets — and has taken on a new persona.

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"At home, he is relaxed. He's calm. He is just kind of a lazy dog — really almost normal," Roman said.

tole and students split

Michigan State University students pose with retired K-9 Officer Tole shortly after a gunman opened fire on campus. (Dowagiac Police Department)

The Dowagiac Police Department has one other K-9 on duty to help with dog demos as a means of community policing outreach.

Tole and students

Tole joined the students on their first day back to class in hopes easing them back into their previously normal schedule. (Dowagiac Police Department)

Roman said he plans on employing the tactics Peinkofer used for her MSU students in future outreach projects in the community.

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"I'm just glad we were able to help out [the students]," said Roman.