Nashville police are changing how they investigate bomb threats after a committee analyzed their handling of a 2019 tip that an Antioch man was building an explosive. The department never made contact, and the man went on to detonate his RV on Second Avenue downtown on Christmas morning last year.

Police Chief John Drake says officers responding to the initial allegations did what they were supposed to, but that a five-person review panel found “deficiencies” in the follow-up process. They want better coordination and documentation.

“While the committee concluded that there is no way to know for sure whether the Christmas Day bombing could have been prevented, and that patrol officers followed protocols and procedures during the August 2019 call, deficiencies were identified in the follow-up investigative process,” Drake said in a statement. “It is of paramount importance to all of us that any deficiencies are corrected.”

Read more: WPLN (Nashville)