Accused and Convicted

04 November 2019 : 6:00 PM - 04 November 2019 : 7:30 PM

Cognitive Bias in a Homicidal Poisoning Case with Professor Bob Mead.

In 1989, Patricia Stallings was found guilty of poisoning her 3-month old son, Ryan, to death by feeding him radiator antifreeze from his baby’s bottle. She was sentenced to life imprisonment without parole. The investigation into Ryan’s death was highly flawed. It was compromised  by an insidious problem not uncommon in criminal investigation known as “inadvertent investigator bias” caused by what are known as “expectation” and “context” effects. This coupled with poor forensic science resulted in a totally avoidable miscarriage of justice

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