The Pentagon authorized drone deployments across the U.S. for non-military missions throughout the past decade, according to a new report that recently was made public from a Freedom of Information Act request.

The spy drone flights, which the Pentagon inspector general’s report states were rare and lawful, occurred fewer than 20 times between 2006 and 2015 for non-military purposes. In the report, the inspector general emphasized that the flights always complied with existing laws, although the report did not provide specific details on any of the domestic spying missions.