A coalition government will restore the $58.1 million Labor cut from a security screening program at Australia's ports and airports and add another $35 million.
Opposition Leader Tony Abbott made the $93.1 million pledge on the Fremantle waterfront in Western Australia on Friday, saying it was another example of the coalition's tough border security policy.
"You can trust the coalition with border security, you can't trust Labor," he told reporters.
The money would allow Customs to inspect an estimated additional 52,000 sea cargo consignments and 7.5 million additional air cargo consignments.
The coalition claims Labor's cuts to the program have resulted in sea cargo inspections falling 25 per cent and air cargo inspections 75 per cent.
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WA Premier Colin Barnett, who joined Mr Abbott for the announcement, said Australia was in danger of losing control of its borders.
The coalition would announce its broader immigration policy in "coming days", Mr Abbott said.
