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Forensic Sciences

Students Investigative ‘Crime Scene’ in Waikiki

April 25, 2025

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The “crime scene” in Waikiki drew more than a few curious glances from beachgoers and passersby.

But it wasn’t police investigating the site. Instead, Chaminade University Forensic Sciences students—in official CSI gear—were the ones collecting evidence and documenting the scene.

The mock crime scene was set up in early April as a hands-on learning opportunity, allowing students to practice critical forensic skills.

“They feel the reality of being in an actual crime scene,” said Carlos Gutierrez, D.F.S., assistant professor of Forensic Science. “They’re applying all the skills they learned during the semester in a more specific and realistic scenario.”



Chaminade’s Forensic Sciences program is known for its practical approach, blending rigorous academics with real-world applications. The setup in Waikiki demonstrated Chaminade’s commitment to hands-on learning, giving students a chance to navigate complex investigative procedures under faculty supervision, Gutierrez said.


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The major in Forensic Sciences includes instruction on the techniques used for recognizing, documenting and analyzing physical evidence, reviews of the legal system and ethical guidelines that govern forensic sciences, and hands-on applications of the scientific method in a lab.

All Forensics Sciences students are required to complete a rigorous, 135-hour internship. Students have completed internships with a variety of entities, including the Honolulu Department of the Medical Examiner, police departments in Hawaii and Guam, and the Joint POW/MIA Accounting Command’s Central Identification Laboratory.

To learn more about Chaminade’s Forensic Sciences program, click here.

Posted by: University Communications & Marketing Filed Under: Featured Story, Homepage, Natural Sciences & Mathematics, Student Life Tagged With: Forensic Sciences

Beach Transformed for CSI Simulation

November 1, 2024

Chaminade University Forensic Sciences students drew curious glances at a mock crime scene investigation held at Kaimana Beach this week. A field was transformed into a simulated investigation zone as students in full CSI gear took notes and captured crime scene photos.


Also in Campus News: Forensic Sciences Research in Spotlight


Organizers said the mock crime scene investigation allows students to put theory into practice. Participants practiced evidence collection and analysis along with meticulous scene documentation.

Chaminade Forensic Sciences students document a mock crime scene at Kaimana Beach.

Chaminade’s Forensic Sciences program is known for its hands-on approach to learning, blending rigorous academics with real-world applications. The realistic set-up in Waikiki demonstrated Chaminade’s commitment to giving students opportunities to learn by doing.

To read more about Forensic Sciences at Chaminade, click here.

Posted by: University Communications & Marketing Filed Under: Campus and Community, Featured Story, Homepage Tagged With: Forensic Sciences

Forensic Sciences Research in Spotlight

October 28, 2024

Throughout the school year, one of the ways Chaminade Forensic Sciences students learn about decomposition is by studying pig carcasses. The program has been bringing carcasses to a field on campus since 2013, allowing students to meticulously gather data on how the pigs decompose.

The resulting database, says Forensic Sciences Director David Carter, created such a wealth of information that it allowed for almost flawless predictions of how pigs would decompose in the tropics based on the time of the year, taking temperature, humidity and other factors into account.

Carter developed a formula based on that very data, a significant development for the field that he presented at the International Caparica Conference in Translational Forensics in Lisbon this month.


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Carter says it’s important to note that pig carcasses aren’t human bodies—so the formula isn’t transferrable. But his “little pig equation” does offer hope that a similar human-focused calculation could someday be within reach of forensic scientists, explaining decomposition in different climates.

“Humans have so many variables,” Carter said. “But if we do the same thing for humans, we can probably figure out how long people have been dead a lot better than we do now.”

Carter’s database findings are already providing a new avenue of research for universities or other institutions with so-called “body farms,” where human decomposition in the elements is studied.

Carter cautioned that developing such a formula would require partnerships with law enforcement, medical examiners and years worth of data. He added several universities have already sought him out to talk about the pig decomposition study, including one in Australia that’s establishing a body farm.

Carter’s pig carcass research, with co-authors, was published in the journal Forensic Science International last year and was based on 10 decomposition studies conducted on Chaminade’s campus.

Joined by some colleagues, Carter is also hoping to present on separate research findings next year at the 77th annual Conference of the American Academy of Forensic Sciences in Baltimore. That presentation is set to focus on investigations with the Honolulu Medical Examiner’s Office.

Carter is an expert consultant for the office and is often brought onto cases to help determine whether findings during forensic investigations or autopsies are consistent with natural processes of death.

The presentation developed for the Baltimore conference, he said, incorporates data from 250 cases that offer insight into how authorities could use previous death investigations to inform future ones.

For example, he said, the database he is developing could allow a forensic investigator to more readily determine if a particular mark on a body is consistent—or not—with a natural death.

“You have essentially a reference database. In forensic science, you would refer to it as your knowns—like a database of fingerprints,” he said. “People underestimate the power of ruling stuff out.”

To read more about Carter’s research, click here.

Posted by: University Communications & Marketing Filed Under: Campus and Community, Featured Story, Homepage Tagged With: Forensic Sciences

Peer-Reviewed Paper

February 12, 2024

International journal accepts paper from Professor David Carter and colleagues

David Carter, Ph.D., literally wrote the book on forensic microbiology so, it was only natural that he was invited to co-author a published paper that will appear in Nature Microbiology. Completely comfortable discussing an issue that is often squeamish for many, the Forensic Sciences Program director casually speaks of cadavers and PMI (Post Mortem Interval) as if he’s talking about the weather.

“There’s definitely increasing interest in PMI (or the time that has elapsed since an individual’s death),” Carter says. “It’s critical information that could be key to solving a crime—or providing an alibi—in absence of any witnesses … or insects.”

Dr. David Carter holding his AAFS Pathology/Biology Section Award for Achievement in the Forensic Life Sciences.
Dr. David Carter holding his AAFS Pathology/Biology Section Award for Achievement in the Forensic Life Sciences.

The microbiomes associated with decomposing human cadavers are universal regardless of location or environmental conditions, the paper published in Nature Microbiology suggests. The findings show a conserved and predictable sequence of microbial interactions that break down organic matter, which could have implications for forensic science.

Decomposition is essentially nature’s recycling system. It is a fundamental process that recycles dead biological material to fuel biological processes, such as plant productivity and soil respiration. Microbial fungi and bacteria are predominantly responsible for decomposition, and although this process is well studied, research has focused predominantly on the breakdown of dead plant biomass. In contrast to plants, animal carcasses, including those of humans, are enriched in readily decomposable proteins and lipids, but their impact on biogeochemistry and community ecology are poorly understood.

In their research, Carter and his colleagues tracked the decomposition process in 36 human cadavers, which had been willed to science. The bodies were placed in three locations with either a temperate or semi-arid climate, with three cadavers placed at each location for each of the four seasons, and the researchers took samples of the cadavers’ skin and surrounding soil throughout the first 21 days postmortem. Their study found that decomposing human cadavers had a universal consortium of microbes, regardless of the location, climate or season, that are rare in non-decomposition environments and appear unique to the terrestrial breakdown of flesh.

“Jessica Metcalf of Colorado State and Rob Knight of UC San Diego and I initiated this research in 2011,” Cater says. “Our findings are a sign of success, but we’re still not quite there.”

With metagenome-assumed genomes and metabolomic profiling of soils adjacent to cadavers, Carter and his co-authors reconstructed a network of interaction that revealed how fungi and bacteria share resources as they metabolize decomposition products. Carter and his colleagues suggest that insects may serve as vectors that disperse these microbes from one decomposing animal to another.

According to Carter, using data on the microbial timeline of cadaver decomposition, combined with a machine learning model, they were also able to predict the time since death, which could have potential future applications for forensic science.

“We now have techniques that we didn’t have 20 years ago,” Carter asserts. “It’s also a lot easier for new science and other developments to get in the hands of lawyers and investigators, which makes for a stronger working relationship with criminologists to achieve criminal justice.”

Posted by: University Communications & Marketing Filed Under: Faculty, Homepage, Innovation, Uncategorized Tagged With: Faculty, Forensic Sciences, Honors and Awards

Student Athlete

November 28, 2023

Haley Hayakawa ’24 has all the bases covered

Haley Hayakawa gets sworn in at the Kapolei field office of the Federal Bureau of Investigation.
Accepted into the FBI’s “Honors Internship Program,”Haley Hayakawa gets sworn in at the Kapolei field office.

Her fellow classmates think she’s playing Candy Crush on her laptop. But in actuality, Haley Hayakawa ’24 is eyeing her Google calendar, which is scattered with different colors, each representing a lab, class or work hours that she has committed to during the week.

When the California native is not in a class or lab, she’s out in left field, shagging flies as a member of the Women’s Softball team. And during the summer, Hayakawa was working 40 hours a week at the Federal Bureau of Investigation’s field office in Kapolei, where she participated in the “Honors Internship Program,” which only accepts a sliver two percent of all its applications.

“It was my first full-time job,” said the 22-year-old Forensic Science major. “It has been the best experience I’ve ever had; everybody there wants to be there, and they all want to help you.”

An avid softball player since the eighth grade, Hayakawa committed to Chaminade University when she was a junior in high school, the earliest a student athlete can officially commit to a Division I or Division II college. 

“I was recruited by Division I and Division II schools, but some wouldn’t allow their recruits to participate in sports if they plan to major in a hard science because of all the required labs,” Hayakawa said. “Chaminade does, and it’s one of the reasons I chose to come here.”

She was also familiar with Chaminade’s Forensics Science program, which requires its students to complete a rigorous, 135-hour internship with such offices as the Honolulu Department of the Medical Examiner, police departments in Hawaii and Guam or the Joint POW/MIA Accounting Command’s Central Identification Laboratory. 

“During my junior year, I interned with the Medical Examiner Department, which gets involved with deaths as a result of violence, substance abuse, trauma, accidents or suicide, among other suspicious causes of death,” Hayakawa explained. “After reading some of the suicide notes, I was thankful to be stressed out because those notes helped put things in perspective for me.”

An ambitious go-getter from an early age, Hayakawa is the only child and holds high expectations from herself—and not her parents, Greg and Myra Hayakawa. In fact, her father often tells her “to be open to changes, and not everything happens as planned.”

“In my freshman year, all I could eye was being awarded summa cum laude, which requires a 3.96 GPA,” Hayakawa notes. “I’ve only had one B and that was in Organic Biochemistry, which lowered my 4.0 GPA to 3.96.”

Ironically, one of her two American Chemical Society awards was being recognized as the Most Outstanding Student in Organic Biochemistry—despite her B—and Most Outstanding Student in Forensic Chemistry, nominated by David Carter, Ph.D., Forensic Sciences director and professor.

Haley Hayakawa gets ready to take off from second base.
Haley Hayakawa gets ready to take off from second base.

“She also has minors in Biochemistry and Chemistry,” Carter says. “She is a stellar athlete on the softball team and she also works as one of our Forensic Sciences Laboratory Assistants.”

Hayakawa’s collegiate experience has certainly had its challenges. Her freshman year was during the height of COVID, which meant Hale Lokelani Residence Hall was in lockdown mode, limiting her interaction with fellow students except for her roommate Naomi Noguchi from Kauai. It was also her first time living away from home, and she couldn’t leave campus for three weeks. Meanwhile, the softball team couldn’t take to the gym and was forced to conduct its workouts via Zoom videos.

“My classes were from 8 a.m. to 5:30 p.m. on Mondays, Wednesday and Fridays, which was crazy,” Hayakawa recalls. “I was so overwhelmed, and when I went home for the winter break, my parents asked if I was OK because I had lost 30 pounds.”

When she returned to campus in the spring, Hayakawa now had to juggle between her softball season and her studies, maintaining a batting average of .377—earning her the team’s batting champion— and a perfect 4.0 GPA. 

“It’s easy to manage time, when your time is managed for you,” Hayakawa quips. “I’m all in … all the time.”

As she completes her final year as a Silversword, Hayakawa fondly reflects back on her time on Kalaepohaku campus, on the softball field, in the labs and with her friends. She already has future plans to attend graduate school, after having turned down a job offer with the FBI field office in Kapolei. 

“I’ve always wanted to help the community through criminal justice,” says Hayakawa, who will graduate as summa cum laude, thus achieving her ultimate freshman goal. “I made the right decision to come to Chaminade, not only because of its small class sizes, but because I got to form relationships with my professors and formed new friendships.”

Posted by: University Communications & Marketing Filed Under: Athletics, Featured Story, Natural Sciences & Mathematics, Student Life Tagged With: Forensic Sciences, Honors and Awards, Scholarship

Out on a Limb

September 19, 2023

Elena Chen wants to help people walk again

Elena Chen and a fellow graduate student help an amputee with his prosthetic leg.

She vividly remembers the moment when she knew that she wanted to pursue her higher education in prosthetics. While a sophomore volunteer at Shriners Children’s Hawaii, Elena Chen ’21 witnessed something less than a miracle, as she describes it.  

“I saw a young kid get a second chance to run again,” Chen recalls. “After putting on a leg prosthetic, he got up and I’ll never forget the smile on his face; it was awesome to see.”  

Now attending the International Institute of Orthotics and Prosthetics in Tampa, Fla., Chen is working towards her master’s degree in Orthotics and Prosthetics (O&P), a specialized health care profession that combines technical and clinical skills to care for patients with neuromuscular and musculoskeletal disorders and/or patients who have a partial or total absence of a limb.  

“I graduated with my bachelor’s in Forensic Science, which I really wanted a career in,” Chen says. “But when I learned about the field of prosthetics and orthotics, it personally connected with me because I know someone whose leg was amputated because of cancer.”  

Prostheses (artificial legs and hands) and orthoses (braces and splints) enable people with physical impairments or functional limitations to live healthy, productive, independent and dignified lives, and to participate in education, the labor market and social life. The use of prostheses or orthoses can reduce the need for formal health care, support services, long-term care and caregivers.  

“Prostheses and orthoses give people a second chance to perform activities that they once loved, like running, for instance,” Chen says. “When you lose your leg, you can quickly take a downward spiral into deep depression, which causes a persistent feeling of sadness and disinterest.”  

Without access to prostheses or orthoses, people who need them are often excluded, isolated and locked into poverty, which increases the burden of morbidity and disability. The Convention on the Rights of Persons with Disabilities (CRPD) states that Member States—to which the U.S. belongs—are responsible for taking effective measures to ensure personal mobility for the greatest possible independence of people with disabilities.

Elena Chen laminated a prosthetic socket during one of her classes.

They also have a corresponding responsibility to promote and ensure the availability of and access to mobility aids, devices and assistive technologies, including prostheses and orthoses.

As of June 2023, the CRPD has been ratified by 164 signatories and 187 parties, 186 states and the European Union. Members are thus obliged to ensure access to affordable, high-quality assistive products, including prostheses and orthoses. However, the World Health Organization estimates that, today, only 1 in 10 people in need has access to assistive products, including prostheses and orthoses.        

Chen wants to change this.  

From 2019 to 2020, Chen shadowed her mentor, Cameron Lehrer, an American Board Certified and Licensed Prosthetist and Orthotist, and owner of Prosthetics & Orthotic Associates of Hawaii, Inc, which prides itself in its creative and innovative approach to patient-centered care.  

“I was a student apprentice responsible for taking casts and measurements,” Chen explains. “I was making prosthetic sockets, and really building my skills.”  

Chen, though, just doesn’t want to learn about prosthetics and orthotics, she also wants to be able to translate the technical medical terms in Mandarin. This month, she received her X2 student visa and started her clinical rotations in Chongqing, China.  

“I’m so excited,” said Chen, after learning about the approval of her visa. “Not only will I gain more experience in making prosthetic limbs, but I’ll also learn more Mandarin. Eventually, I want to be able to utilize my Chinese language skills in Hawaii to help people with their language barrier in a hospital setting, which is a scary experience.”  

Due to return to Hawaii in December to visit her parents, mom Shanly Wu and dad Tommy Chen, the aspiring 24-year-old prosthetist and orthoptist is grateful for the experiential opportunities that Chaminade exposed her to while an undergraduate student, and taught her to be open to new ideas and to want to learn everything she can.  

“Outside of classes, I did volunteer work and joined various student clubs,” Chen says. “I also completed the one-year Hogan Entrepreneurial Program, and I was the only one who went to Shanghai, China to study abroad. What I appreciate most is that Chaminade taught me the importance of community service and giving back, which is what I want to do when I get my board-certified license in ’24 or ’25.”

Posted by: University Communications & Marketing Filed Under: Alumni, Featured Story, Institutional, Natural Sciences & Mathematics, Service Learning Tagged With: Alumni, Forensic Sciences

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