The partial government shutdown of the Department of Homeland Security could impact how the federal government is able to address potential terror threats in the U.S., a public safety expert said, warning that the escalating conflict with Iran could encourage those wishing to harm Americans.

Jeffrey Halstead, a retired police chief in Fort Worth, Texas, and a former commander for Homeland Security for Phoenix police, told Fox News Digital that U.S. military actions could “escalate the mindset of some of these outlying or outlier terrorist entities” wanting to take action.

“We’ve seen historically that any time there is a conflict, especially in the Middle East with escalating tensions, military action and now a declaration of war, there is a significant impact on the ability for us to work collectively to share intelligence and gather information in a timely manner from our federal partners,” Halstead said. “With the current Department of Homeland Security shutdown, if something were to occur here in the United States, there could be some significant delays because FEMA and other very, very critical divisions of the federal government are basically shut down.”

He specifically pointed out the terrorist attack in Austin, Texas, over the weekend, which left two people dead and 14 injured. The suspect, Ndiaga Diagne, a 53-year-old naturalized citizen born in Senegal, was also killed.

Authorities said they are investigating the shooting, which took place at a bar at about 2 a.m. on Sunday, as a “potential nexus to terrorism” as Diagne appeared to wear a “Property of Allah” sweatshirt and an undershirt depicting the Iranian flag. A Quran was also later recovered from his vehicle, and an Iranian flag and images of regime leaders were found at his home.