"It is apparent that the ICC is being utilised as a political tool against the Philippines", said Mr Duterte.
Philippine President Rodrigo Duterte has announced the upcoming withdrawal of the country from the Rome Statute of the International Criminal Court (ICC), the presidential press service said Wednesday in a statement.
Duterte announced he is withdrawing the Philippines from the Rome Statute which gives the Hague-based ICC the authority to investigate crimes on its soil. At that time, he suggested that he might withdraw from the ICC, calling it a "useless" institution.
The Philippines became the 117th state party to the Rome Statute in August 2011 following Senate ratification of the treaty.
In a statement, the Commission on Human Rights (CHR) said the government's withdrawal from the global court does not terminate the ICC's ongoing preliminary examination. "Neither is it a crime of aggression or a crime against humanity", he said.
"The government is grossly mistaken in believing that the ICC does not have jurisdiction over events in this country".
Lagman further pointed out that the withrawal can not derail the ongoing preliminary examination of Duterte's alleged crimes against humanity in relation to his administration's drug war.
He said the worldwide criminal court has also been utilized as a "political tool against the Philippines" following the implication of culpability the preliminary examination by the ICC Prosecutor Fatou Bansouda "unduly and maliciously created".
"The deaths occurring in the process of legitimate police operation lacked the intent to kill", Duterte said.
Harry Roque, Duterte's spokesman, said the firebrand leader has instructed Executive Secretary Salvador Medialdea to notify the ICC of the Philippines' withdrawal.
Adopted and signed by 123 states in 1998 at a conference in Rome, the treaty created the ICC and gave it jurisdiction over genocide, crimes against humanity, and war crimes.
"It jumps the gun on his potential legal liability or responsibility".
"This is a penal law, and should be published pursuant to the ruling of the Supreme Court.What the Court says is the provisions of a penal law be published so the people will know exactly what is being punished by the treaty", Roque said.
"The legal reasoning and factual narrative of the withdrawal are novel at best and skewed at worst. They are patently self-serving and unilaterally rearranges the cosmos of global law and its principles".
"An global law can not supplant, prevail or diminish a domestic law", he said, adding that the ICC announcement of an investigation on the drug war is a "violation of due process and constitutional presumption of innocence".
In a 15-page statement released to the media, the President chose to withdraw the country's signature from the Rome Statute, a treaty that established the ICC, following what the President said was the lack of respect and clear bias against his government.
Philippine President Rodrigo Duterte addresses the troops during the 82nd anniversary celebration of the Armed Forces of the Philippines in suburban Quezon city northeast of Manila.
The administration has many times denied involvement in summary killings, saying the almost 4,000 drug suspects killed in police operations had put up violent resistance.
The ICC is the first permanent institution having power to exercise jurisdiction over persons for the most serious crimes of global concern such as genocide, crimes against humanity, war crimes and crimes of aggression, and is seen to help end impunity for the perpetrators of these crimes.
He said when the Philippines became a signatory to the Rome Statute, it was on the assumption that the global accepted principles of justice in relation to its constitutional requirement on due process would be upheld.