Dr Anjali Gupta is a Lecturer in the School of Mathematical and Physical Sciences and a researcher in the UTS Centre for Forensic Science.
Dr Gupta received her PhD from the University of Auckland in 2019 where she worked on Interpreting Forensic Trace Evidence using Multi-Elemental and Spectroscopic Data. She was awarded her MSc from the University of Oxford in 2011. She worked in the industry as Data Scientist, Statistician and Consultant in various domains - energy sector, financial markets, marketing during 2012 until 2020. She also worked as a co-organiser for R Ladies Auckland group from 2017 until 2020.
Dr Gupta's research interests include statistics, Bayesian statistics, forensic interpretation of trace evidence.
35255 Forensic Statistics
65009 Forensic Inference and Interpretation
Gupta, A, Martinez-Lopez, C, Curran, JM & Almirall, JR 2019, 'Multi-element comparisons of tapes evidence using dimensionality reduction for calculating likelihood ratios', FORENSIC SCIENCE INTERNATIONAL, vol. 301, pp. 426-434.View/Download from: Publisher's site
© 2017 Elsevier B.V. Laser Induced Breakdown Spectroscopy (LIBS) is an analytical chemistry technique that has the potential to identify and measure the elements in a substance of interest. LIBS is applicable for any phase (solid, liquid or gas). LIBS has gained importance in the fields of material identification, biomedical science, forensics, military, art and archaeology in the recent years. In spite of its many advantages over other instruments, it has a few drawbacks such as poor precision and repeatability. That is, different spectra may be observed for the same sample over successive runs. This indicates poor precision of the instrument. This paper presents an experiment designed to investigate the claim that there is higher variation in the experiments conducted on different days as compared to the experiments conducted on the same day. This study examines the variability in the spectra between the runs on the same day, and the variability between runs on different days using samples from a standard reference glass, and discusses the conclusions that can be drawn from the results.