Investigators were checking surveillance video and planned to hand out pamphlets to employees telling them about the serious nature of the crime and that it wouldn’t be tolerated, Downing said.
While there are cameras in some of these restricted-access areas, Downing said there isn’t as much camera coverage as in the public-access areas.
Airport police have increased patrols. The airport also has increased its checks on some employees — asking them to produce valid IDs — and will continue to do so until the case is solved, said Arif Alikhan, deputy executive director for Homeland Security and Law Enforcement at Los Angeles World Airports.
“We’re increasing our presence, increasing our tempo, educating our employees, talking to all employers about this,” Alikhan said. “We’re doing everything we can.”
Employees have to undergo a criminal history check and pass a security threat assessment to receive access badges at the airport, though they aren’t required to clear airport security to get to work, Alikhan said.
Dry ice is widely used by vendors to keep food fresh.
According to the Transportation Security Administration’s website, passengers can pack perishables in up to 5 pounds of dry ice in their carry-on or checked baggage as long as it’s properly packaged — meaning the package is vented. Even so, the agency reserves the right to not allow it on the plane if they believe it poses a security concern.