A New Jersey judge has ordered a fertility clinic to turn over client records in response to discovery demands by a couple whose child was born after the husband’s semen specimen was mistakenly switched with that of another man.

Lawyers for the Institute for Reproductive Medicine at St. Barnabas refused to comply with the plaintiffs’ discovery requests, which sought the names of male and female clients who used the clinic’s services at the same time as the plaintiffs. The defendants claimed the discovery requests violated the Health Insurance Portability and Accountability Act.