The proposed Australian assistance package also involved the deployment of 300 Australian officers, which saw Kimisopa involved with the passage of legislation surrounding the powers and liabilities of the officers, as well as defending them from claims that the deployment breached the country's sovereignty. He was subjected to particular criticism from some MPs for the proposed immunity for the Australian police. In March 2004, he was involved in the deployment of Papua New Guinean police to the Solomon Islands, following the January passage of enabling legislation. Domestically, he continued attempts to limit the supply of firearms and ammunition within Papua New Guinea, ultimately proposing a total ban on the sale of guns. In September 2004, he called for new legislation to crack down on illegal immigration to Papua New Guinea.
