Mariya Goray

Mariya Goray
Flinders University · College of Science and Engineering

Doctor of Philosophy

About

21
Publications
5,374
Reads
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746
Citations
Introduction
Additional affiliations
June 2021 - present
Flinders University
Position
  • Lecturer
January 2010 - May 2021
Victoria Police
Position
  • Manager
Education
February 2006 - January 2011
La Trobe University
Field of study
  • Forensic Genetics
January 2002 - January 2005
Victoria University of Wellington
Field of study
  • BBMSc Human Genetics (Hon)

Publications

Publications (21)
Article
Full-text available
Understanding the factors that may impact the transfer, persistence, prevalence and recovery of DNA (DNA-TPPR), and the availability of data to assign probabilities to DNA quantities and profile types being obtained given particular scenarios and circumstances, is paramount when performing, and giving guidance on, evaluations of DNA findings given...
Article
DNA is frequently retrieved from commonly used objects or surfaces with no apparent biological stains. This DNA may have come from one or more individuals who directly deposited their DNA, or indirectly transferred the DNA of others, when physically contacting the sampled object or surface. Furthermore, contactless indirect DNA transfer of this ‘to...
Article
Drying properties of forensically relevant biological materials including saliva are lacking research despite being known to affect casework-relevant phenomena, including DNA transfer. We previously observed that saliva collected from someone chewing gum and deposited on various surfaces did not dry, raising questions about the effects of chewing g...
Article
“Shedder status” or “shedder type” are commonly used terms that categorise an individual based on their ability to deposit “touch” DNA via direct contact with a surface. However, it is not yet clear how best to categorise an individual into a shedder class, or how to allocate a shedder score on a sliding scale. This study considers categorisation o...
Article
DNA transfer is a well-recognised phenomenon impacting the probability of detecting the presence of a particular source of DNA and thus the likelihood of the evidence given considered events within forensic investigations. Comprehensive study is lacking on variables associated with indirect DNA transfer without physical contact. Additionally, the d...
Article
There is a need to improve our awareness of the transfer, persistence, prevalence and recovery of DNA (DNA-TPPR) from items/surfaces, and within different spaces and circumstances, to assist sample targeting during collection and activity level assessments. Here we investigate DNA-TPPR within office spaces. Specifically, to what extent DNA, left by...
Article
Understanding the variables impacting DNA transfer, persistence, prevalence and recovery (DNA-TPPR) has become increasingly relevant in investigations of criminal activities to provide opinion on how the DNA of a person of interest became present within the sample collected. This review considers our current knowledge regarding DNA-TPPR to assist c...
Article
As loss and/or contamination of DNA evidence can have major negative implications, it is incumbent on forensic practitioners to minimise this risk. DNA transfer during examination of items, even when wearing gloves, is a potential risk. Here we observe a number of laboratory based biological evidence recovery personnel performing a range of examina...
Article
Those authorized to report on the weight of DNA evidence are frequently called upon to address questions on DNA transfer, persistence, prevalence and recovery (DNA-TPPR). Due to a lack of standardization, knowledge and training, these questions are often addressed poorly or inadequately, thus, potentially adversely impacting justice outcomes. As th...
Article
When questions relating to how a touch DNA sample from a specific individual got to where it was sampled from, one has limited data available to provide an assessment on the likelihood of specific transfer events within a proposed scenario. This data is mainly related to the impact of some key variables affecting transfer that are derived from stru...
Article
Full-text available
Multiple DNA transfer has increasingly been brought up in court as potential means for the presence of the defendants DNA at the crime scene or on a piece of evidence. This has prompted several investigations into DNA transfer under very controlled and semi-controlled conditions, however little is published about DNA transfer in "uncontrolled" or r...
Article
DNA transfer and its possible role in explaining the presence of a biological sample at a crime scene is becoming more prevalent in criminal investigations and related court proceedings. To assist understanding of DNA transfer and assess the extent to which we can utilise already available information regarding transfer of DNA we compare transfer r...
Article
Crime scene samples after their collection are packaged and transported to the laboratory for examination and DNA analysis. The amount and location of DNA-containing material retrieved from an exhibit can be critical in acquiring a profile for incrimination or exclusion purposes and for elucidating criminal events. This paper shows that significant...
Article
There is a paucity of data on the relative transfer rates of deposited biological substances which could assist evaluation of the probability of given crime scene scenarios, especially for those relating to objects originally touched by hand. This investigation examines factors that may influence the secondary transfer of DNA from this source, incl...
Article
Full-text available
This research investigates factors that may influence the secondary transfer of DNA. These include the type of biological substance deposited, the nature of the primary and secondary substrate, moisture content of the deposit and type of contact between the surfaces. Results showed that secondary transfer is significantly affected by both the type...
Article
There is a paucity of data on the relative amounts of DNA containing material that is likely to be transferred given specific casework scenarios that incorporate multiple transfer steps. Availability and application of such data could be helpful in estimating the probability of a given set of circumstances actually occurring.Here we utilise data on...

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