Researchers have warned about the reliability of voice evidence in criminal cases. Yet, there are few legal guidelines on the use of such evidence in court.
Deliberately infecting people with a disease-causing agent as part of carefully considered medical research can be ethically acceptable or even necessary.
Facial expressions and gestures can impact the outcome of a trial that depends on the credibility of witnesses.
Random-controlled testing is widely accepted in medicine, and yet voters are not convinced this would be a good approach to testing out government policy before it is implemented.
A century ago, Russian leaders staged mock trials on rape and abortion to educate citizens about new Soviet laws and values. Then, as now, victim-blaming and 'he said, she said' marred the verdict.