"Then you have piracy, which is growing in the country.
"We need to stamp it out."
National Capital District governor and human rights lawyer Powes Parkop opposes the plan.
"It is an inhuman form of punishment and therefore should be unconstitutional," he told The National newspaper last week.
"There is no empirical evidence to show that such punishment has been a deterrence to crime generally or the type of crime for which it is prescribed as a penalty."
He said in the United States, where some states have the death penalty, there is no evidence to show it has reduced crime.
The Catholic church of PNG has also voiced its opposition to the death penalty, with General Secretary Father Victor Roach warning it could prolong the practice of payback among tribes.
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