Ten American Indian tribes, including the Shoshone-Bannock Tribes in Idaho, are gaining access to national criminal databases after a deadly shooting in Washington state helped reveal flaws in the way federal authorities and tribal governments share information, the AP reports.

Tribes can now conduct thorough background checks and add criminal records to the databases, the U.S. Department of Justice said Thursday. It comes after a member of the Tulalip Tribe was able to buy a gun later used by his son to kill four classmates and himself at a high school last year. A domestic violence restraining order issued by a tribal court in 2001 should have stopped the father from buying firearms. You can read the full report here from AP reporter Martha Bellisle in Seattle.