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Study can increase conviction rate of sex offenders

16 October 2020 | Story Leonie Bolleurs | Photo Supplied

Kyla_read more — 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

Kovsies reign FNB Superbowl

2007-05-10

The FNB Super Bowl took place from 26 – 30 April in Potchefstroom.

The Kovsies reigned the tournament in their respective categories.

It was an absolute mega Intervarsity. The following tournaments took place in which Kovsies was represented.

Senior rugby tournament

The Shimlas won their first game against TUT 33-0

In the Semi-final Shimlas lost against Pukke 17-8.

The Shimlas played for third and fourth place against Tukkies and won the game 41-19. Which secured them the third place in the tournament.

The following teams participated in the tournament

Pukke, UJ, Shimlas, Tukkies, Maties, NMMU, TUT, UCT

SA Students team

The following Shimlas were selected for the SA student games:

Steph Roberts (prop)

Drikus Strydom (hooker)

Philip Steyn (lock)

Marlin Ruiters (Scrumhalf)

Marcel du Toit (flyhalf)

Pharmaton Junior Rugby Tournament

The Kovsies u/21 & u/19 teams won their respective tournaments. It is a wonderful accomplishment for the University. The following teams took part in the tournament: Kovsies, Pukke, Tukkies and UJ.

u/21 results

Won Pukke 12-11

Won UJ 22-18

Won Tukkies 47-16

u/19 results

Won UJ 9-8

Won Pukke 25-13

Won Tukkies 25-16

Hostel Rugby Tournament

Reitz and Armentum represented Kovsies. These two teams played against each other in the final which Reitz won 47-0. To have both our hostel teams in the final is an outstanding accomplishment for Kovsies.

The following Universities took park: Kovsies, Pukke, Tukkies and UJ

Reitz results

Won Sonop (UJ): 27-7

Won Patria (Pukke): 11-10

Bastion (Tukkies): withdraw

Won Armentum in the final: 47-0

Armentum results

Won Overs (Pukke): 15-7

Won Afslaan: 49-12

Won Boekenhout: 43-0

Lost against Reitz in the final: 47-0

Hostel Soccer

Veritas represented Kovsies and won Kiaat from Tukkies in the final with 3-1 after a penalty shoot-out.

Hostel Netball

Vergeet-my-nie and Emily Hobhouse represented Kovsies. Vergeet-my-nie lost in the final against Wanda from Pukke17-14.

Hostel Cricket

Vishuis lost in the final against Villagers from Pukke with 5 wickets.

Hostel Hockey

Wag-‘n-Bietjie and Vergeet-my-nie represented Kovsies. Unfortunetly none of them went through to the finals.

We won most of the games against the strongest Universities in the country is an outstanding accomplishment for Kovsies.

Compiled by

Ansu Colditz

Rugby Manager

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