Evidence-Based Justice Lab is a research group funded by UK Research and Innovation conducting work at the intersection of data science, psychology, and law, with a focus on the criminal justice system. It gathers data on various aspects of the criminal justice system (e.g. guilty pleas, jury decision-making, use of evidence) to examine how these aspects of the system are operating (or are likely to be operating) in practice. Evidence-Based Justice Lab does this through gathering qualitative and quantitative data both from real cases and from experimental work.