The State Prosecution has been debating the case since June.
"The target may be invisible, and we can still shoot," he said, adding that this "allows us to operate silently, at long range - and where it is necessary."
The extent of the submarine movements went beyond what British officials had previously seen.
It is possible that a Russian spy ship collected information on the Israeli NIS Drakon submarine.
Independent researchers concluded that the submarine was very likely of Nazi origin, and researchers from the Italian Naval League supported this finding.
The operation of the submarine requires great secrecy, and as such, the submarine must be completely independent.
The successful tests are paving the way for the US Navy’s effort to advance their underwater capabilities as the Houthis continue their attacks on maritime trade.
Non-proliferation experts say sending submarines to Australia that use highly enriched uranium could set a precedent for other countries to use the fuel.
Pratt then shared those secrets with a number of other people, including foreign officials and journalists.
Huang Shu-kuang told local media last week that a contractor who had failed to obtain a bid forwarded information to China.