The Illawarra Shoalhaven Local Health District has denied security staff have inadequate rosters and safety tools.
Responding to allegations from the Health Services Union, Shoalhaven Hospital Group General Manager Craig Hamer said the district was addressing recommendations raised by a state-wide review in 2019.
"The safety of our patients and staff is paramount and we remain committed to ensuring the safest possible environment for everyone," he said.
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"We will await the final report of this review which is due later this year before considering further recommendations."
Mr Hamer said, contrary to HSU reports, CCTV cameras were operational across Shoalhaven Hospital, including at the front entrance.
"Security radios are operational at the Shoalhaven site," he said.
"At Milton Ulladulla Hospital, two security staff members are assigned to each shift.
"Across NSW, $19 million has been invested to improve security in emergency departments at public hospitals. More than $5 million has been invested to upgrade duress alarms for staff in emergency departments, which they are mandated to wear while on duty."