A state lawmaker in Oregon is using thousands of pages of redacted documents he sought for more than a year to launch legislation demanding more accountability and oversight of a primate research facility with a long history of complaints.

Incidents at the Oregon National Primate Research Center, associated with Oregon’s largest hospital, include one in which two monkeys died after being placed into a scalding cage-washing system. Other animals perished from neglect. Workers have low morale, some have been drinking on the job, and dozens have complained about dysfunctional leadership, the documents show.