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16 October 2020 | Story Leonie Bolleurs | Photo Supplied
Kyla Dooley, runner-up in this year’s Three-minute thesis competition, wants to pursue a career working alongside police enforcement, using her knowledge of forensics to solve criminal cases and convict perpetrators.

When rapes and sexual assaults are committed, DNA evidence can play a large role in convicting the offenders. DNA evidence collected from sexual crimes can, according to Kyla Dooley, often be tricky to analyse.

Kyla has just completed her master’s degree, specialising in Forensic Genetics, at the University of the Free State (UFS). She not only thrives in this field – graduating at the top of the Faculty of Natural and Agricultural Sciences in 2018 when she was awarded the Dean’s Medal – but her work also brought her the runner-up position in this year’s Three-minute thesis competition. 

She talked about her research on the use of male-specific DNA in the analysis of DNA evidence collected after crimes of a sexual nature have been committed.

Explaining her research, Kyla elaborates: “In most cases, the victim is female, while the offender is male. Therefore, the evidence is often a mixture of male and female DNA and this can make it difficult to analyse the male DNA and match it to a male suspect.”

She believes the solution to this is to target male-specific DNA in analysis. “This eliminates all female DNA and simplifies the process,” says Kyla.

“Unfortunately, male-specific DNA technology is not currently used in South Africa, because the DNA regions tested to date haven’t shown much success in distinguishing between males in our population,” Kyla points out.

“The goal is now to use DNA evidence, to match it to a suspect, and have the confidence that it came from him and only him. Or else defence lawyers could argue that it came from someone else in the population,” she says.

Improving DNA evidence

Therefore, Kyla’s research focused on evaluating a new group of male-specific DNA regions, which are to be tested yet, to see if it would be a viable option for use in South Africa. 

“I achieved this by collecting DNA samples from men on campus, processing them to obtain DNA profiles, and then determining how well these regions can distinguish between the men. The results of my research demonstrate the potential of these DNA regions to improve the use of DNA evidence when investigating sexual assaults in South Africa,” says Kyla.

She believes her study can play a role in increasing the conviction rate of sexual offenders, which could lead to a reduction in South Africa’s alarmingly high rape statistic. 

“Everyone in South Africa is affected by this horrific crime in some way or another, so the benefits of this would be widespread,” she says.

Solving crimes

Although Kyla will one day pursue further studies, she is ready for the next stage in her life. “I am in the process of applying for jobs and getting ready to dive into the real world. I’ll definitely be pursuing a career working alongside police enforcement to solve criminal cases and convict perpetrators of such crimes. Working for the NYPD in the USA or Scotland Yard in the UK is the ultimate dream job,” she says.

“I chose my field not only because the forensics world absolutely fascinates me, but also because I want to make a difference. I want to play a role in getting justice for those affected by violent crimes. One simple process in a forensic scientist’s everyday routine could be a life changer for a victim of crime,” believes Kyla.

 

 


News Archive

UFS Paralympic athlete Louzanne ready for Rio
2016-09-12

Description: Louzanne ready for Rio Tags: Louzanne ready for Rio

Rufus Botha (coach, left), Louzanne Coetzee,
and her guide Khothatso Mokone during a training
session for the Rio 2016 Paralympic Games.
Photo: Johan Roux

“Coetzee is someone with a lot of perseverance. She is becoming a world-class athlete with the help of her guide, Khothatso Mokone.” These were the words from Rufus Botha, the coach of 23-year-old Louzanne Coetzee.

Coetzee, who works at the Institute for Reconciliation and Social Justice at the University of the Free State (UFS), said that the 2016 Paralympics in Rio de Janeiro was never a big dream for her, because she never thought she was good enough to make it, but God had a different plan for her life.

Louzanne and her formidable team

Coetzee said that she still struggles to come to terms with the fact that she is competing at the Paralympics and experiences a rollercoaster of emotions. “I am excited, nervous, and confused all at the same time.”

According to Botha, who has been her coach for the past four years, Coetzee and her guide have such a unique rhythm and work together well. “After Mokone, also a former Kovsie, stepped into the picture, everything just escalated.”

The 2016 Paralympics and beyond

“Coetzee is someone with a lot of
perseverance and is becoming a
world-class athlete.”


“Making the Paralympic team is already a bonus. The next target we are aiming for, is for her to reach the finals in the 1500 m,” Botha said.

Coetzee and Mokone were included in the South African team to participate in Rio from 7 to 18 September 2016. Her heat takes place on 15 September 2016 and the finals of the 1500 m on 17 September 2016.

Coetzee’s main goal after the Paralympics is the World ParaAthletics Championships in London 2017.

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