Latest News Archive

Please select Category, Year, and then Month to display items

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

International Year of Crystallography attracts science experts from across the globe

2014-10-13

Video: Discover what Chrystallopgraphy can do for you
Video: Celebrating Crystallography: An Animated Adventure

Summit programme

The third world summit in the International Year of Crystallography (in Africa) will be hosted by the UFS Department of Chemistry here on the Bloemfontein Campus. Prof André Roodt, Head of the Department of Chemistry, was elected as the President of the European Crystallographic Association in 2012. Earlier this year he unveiled the Max von Laue 'Plaque' in Posnan, Poland.

The Pan-African Meeting of the International Year of Crystallography consists of a congress and summit. The details are as follows:

Congress
12–15 October 2014
CR Swart Senate Hall, UFS Bloemfontein Campus

Summit
15–17 October 2014
CR Swart Senate Hall, UFS Bloemfontein Campus
Summit opening: Wednesday 15 October 2014 at 14:00 in the CR Swart Senate Hall

This event will be opened and attended by:
•   the UFS Rector and Vice-Rector – Profs Jonathan Jansen and Corli Witthuhn;
•   the acting Director-General of the Department of Science and Technology – Dr Thomas Auf der Heyde;
•   the acting CEO of the National Research Foundation – Dr Gansen Pillay;
•   the UNESCO Vice-Director for Science Extension – Dr Jean-Paul Ngome-Abiaga (Paris, France);
•   the representative of the Executive Committee for the International Union of Crystallography (IUCr) – Prof Santiago Garcia-Granda (Oviedo: Spain);
•   the marketing director of the IUCr – Prof Michele Zema (Pavia, Italy);
•   the President of the European Crystallographic Association (ECA) – Prof André Roodt, who will officially open the summit on Wednesday 15 October 2014 from 14:00–15:30.

Presenters from across Africa and Europe will deliver papers at this event which will be attended by more than 100 delegates from twenty-plus countries, including Spain, France, Italy, Croatia, Germany, Russia and India.

Numerous crystallographic research areas will be covered. This includes:
•   powder diffraction,
•   small molecule crystallography,
•   biological crystallography,
•   industrial crystallography,
•   surface crystallography,
as well as techniques such as
•   electron microscopy and
•   synchrotron work.

“At this event we hope to establish an African Crystallographic Association,” said Prof Roodt.

The United Nations declared 2014 as the International Year of Crystallography. It was recently officially opened at the UNESCO headquarters in Paris, France, by the Secretary General of the UN, Ban Ki-moon.

The International Year of Crystallography celebrates the centennial of the work of Max von Laue and the father and son, William Henry and William Laurence Bragg. More generally, it celebrates what crystallography can do for humanity – which proves to be a significant amount.

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept