Duterte Implementing Citizens Arrest

What is Citizens Arrest?

A citizen's arrest is an arrest made by a person who is not acting as a sworn law-enforcement official. In common law jurisdictions, the practice dates back to medieval England and the English common law, in which sheriffs encouraged ordinary citizens to help apprehend law breakers.
Source: Wikipedia.org

Is this lawful? Or an act according to the law?

Yes, this is called the Republic Act No. 10389, begun and held in Metro Manila, on Monday, the twenty-third day of July, two thousand twelve (2012).
Reference: http://www.gov.ph/2013/03/14/republic-act-no-10389

Philippine President Rodrigo Duterte on Saturday urged citizens to shoot and kill drug dealers who resist arrest, saying he’d reward those who take matters into their own hands.

Our president encouraged residents to help the government’s fight against crime and the illegal drug. “Please feel free to call us, the police, or do it yourself if you have the gun—you have my support,”.

“You can kill him,” he said of drug dealers who show violent resistance. “Shoot him and I’ll give you a medal.”

As a volunteer media for president Duterte, there is no big deal kasi it is lawful to do when you have the guts to arrest criminals, Enrile also defend Pres. Duterte about this matter and said "the law allows citizens to help in the arrest of drug lords and if needed, kill them when their lives are at risk."

"The law allows citizens’ arrest if those in the illegal drug trade are caught in the act of committing a crime," Enrile said.
Reference: http://www.mb.com.ph/enrile-dutertes-citizens-arrest-order-has-legal-basis/

Ping Lacson: Citizen’s Arrest Unnecessary

In other side, Panfilo Lacson said while there is a provision under the Revised Penal Code allowing “citizens’ arrest” and self-defense is recognized as a strong legal defense in killing a person, he doesn’t see it necessary for the President to provide encouragement.

“The danger in the President-elect’s proposal is that law enforcement authorities might lose control of the situation since civilians are not trained to gather and process intelligence, even conduct overt operations against armed criminals,” Ping said.

“Having said that, the situation might escalate into a serious peace and order problem in the entire country. Certainly, no peace loving citizens need and deserve a ‘Wild, Wild West’ environment,” Lacson said.
Reference: http://www.mb.com.ph/ping-lacson-citizens-arrest-unnecessary

At some point, siguro tama ang sinabi ni Sen. Ping dahil gagamitin ito ng mga mapang-abusong personalidad, pero kung patuloy lang ang mga mamamayan na magbubulagbulagan at matatakot kahit nakikita na nila ang mga kriminal na gumagawa ng masama, mas lalong lalakas ang loob ng mga ito.

Kaya ang pagpapahayag ni President Duterte at pagbibigay encouragement sa mga mamamayan ang magpapalakas ng loob ng mga Pilipinong nanghina na dahil sa mga katiwalian at kabulukan.

Ano po ang masasabi ninyo tungkol dito?