CSAFE invites researchers, collaborators, and members of the broader forensics and statistics communities to participate in the May Center Wide Webinar on Friday, May 18 at 11:00 am CST. We will have a short introduction from CSAFE Director Alicia Carriquiry followed by the  presentation “‘I didn’t download the video and I don’t know how it got into my computer’ – Can we trust the suspect?” by Dr. K. P. Chow, Associate Professor of the Department of Computer Science and the Director of the Center for Information Security and Cryptography at the University of Hong Kong.

Please register for the event by clicking the button above.  Participating instructions will be sent to registered participants via email prior to the event.

Presentation Description:
In the past few years, digital evidence existing inside the suspect’s computer may not be sufficient for conviction. Due to the advances in malware and virus, the defendant may hire his own expert to argue that the digital evidence, e.g. child pornography, was inserted into his computer by malware or virus without the knowledge of the user. In this talk, the speaker will discuss how to apply probabilistic models to estimate the chance that the digital evidence appears inside the suspect’s computer without the user’s knowledge. The model has been applied to estimate such probabilities in several child pornography cases in Hong Kong.