PNP Chief Ronald Dela Rosa points to the nose job undergone by Kerwin Espinosa to disguise from the authorities during presentation to media at Camp Crame Headquarters Friday. Abu Dhabi. ABS-CBN News/File

MANILA — Former Sen. Leila del Lima on Monday said she was "inclined" to file cases against former police chief and now Sen. Ronald "Bato" dela Rosa, who allegedly orchestrated the fabrication of her links to the drug trade that led to her years-long detention.

• 'A blessing': De Lima says UniTeam split emboldened drug war confessions

This, after self-confessed drug lord Kerwin Espinosa during Friday's House quad committee hearing claimed that he was coerced by Dela Rosa to implicate De Lima in the drug war.

"I'll discuss it this afternoon with the lawyers. I'm inclined to file cases against Sen. Bato dela Rosa," De Lima told ANC's Headstart.

De Lima said Espinosa's confession established Dela Rosa's role in the grand plan to silence her at the time when she was the most vocal critic of the Duterte drug war.

• Kerwin Espinosa: Dela Rosa coerced me to link De Lima to illegal drug trade

"And here we are, there is a witness who directly, personally, under oath implicated him, when before the was none, so we will be discussing that in the meeting this afternoon," De Lima said.

• Dela Rosa 'congratulates' De Lima on acquittal

On Saturday, Dela Rosa denied ordering Espinosa to tag De Lima in the drug trade, saying he was not involved in the case build up against the then-senator.

"Why do I need to force him to implicate De Lima when PNP (Philippine National Police) was not a party in the case build up and the filing of drug cases against De Lima? It was entirely done by the DOJ (Department of Justice). Anong pakialam ko kay De Lima?" Dela Rosa said in a statement.

• 'A blessing': De Lima says UniTeam split emboldened drug war confessions

The House Quad Committee is investigating extrajudicial killings (EJKs) and POGOs, which supposedly originated from the Duterte administration.