James Lockyer is a criminal lawyer and a founding director of the Association in Defense of the Wrongly Convicted (AIDWYC), a Canada-wide organization that advocates for the wrongly convicted. He has been involved in more than ten wrongful convictions in Canada, including three homicide cases in which post-conviction DNA testing resulted in exonerations. One of these cases, that of Guy Paul Morin, led to a public inquiry in Ontario in 1997. The report made numerous recommendations for avoiding wrongful conviction in the future, and exposing those of the past.
Lockyer also arranged the DNA testing that exonerated David Milgaard (after he had spent 23 years in jail for a murder he did not commit), prepared an application on behalf of Romeo Phillion (who was convicted in 1972 for a murder he did not commit, but released on bail in 2003 after having spent 31 years in prison), and contributed to the Steven Truscott case. Truscott was 14 years old when he was convicted of a 1959 murder which he did not commit.