Senator Leila de Lima on Tuesday appealed to law enforcement to treat her former driver and alleged bagman Ronnie Dayan right.

"Sa pagkakaaresto kay Ronnie Dayan, umaasa ako sa tamang pagtrato sa kanya ng mga kinauukulan. Ganoon na rin ang panawagan ko sa Pangulo para sa iba pang mga tetestigo laban sa akin katulad ni Kerwin Espinosa," De Lima said in a statement.

[With the arrest of Ronnie Dayan, I am hoping that he will be treated right by authorities. I ask the President to do the same with other witnesses who will testify against me, including Kerwin Espinosa.]

Dayan surrendered to authorities in La Union on Tuesday after months in hiding. He went missing after he was accused of receiving drug money from Bilibid inmates meant for De Lima's 2016 senatorial campaign.

• READ: Driver or bagman: Who is Ronnie Dayan?

Justice Secretary Vitaliano Aguirre said Dayan's capture will "tie up the loose ends and supply the missing links" in the cases filed before his department.

De Lima last week admitted her past romantic affair with Dayan, but maintained that she never accepted drug payoffs.

• READ: De Lima admits affair with ex-driver

"Sa pangunguna ni Pangulong Duterte, pilit ding inuungkat ang inamin kong naging relasyon kay Ronnie Dayan upang paniwalain ang publiko na naging bagman ko raw siya," she said on Tuesday.

[With President Duterte's lead, they keep harping on my admission of our affair to make the public believe that he was my bagman.]

But De Lima said authorities should just focus on her instead of other people.

"Ako naman talaga ang habol ninyo. Huwag na ninyo silang pahirapan pa, mga kriminal man sila o hindi," she said.

[I am the one you are after. Don't make them suffer, whether they are criminals or not.]

"Huwag na rin sana ninyong gawing drama pa ang paninira sa akin. Isampa na lamang ninyo ang mga kaso sa husgado at doon ko na kayo haharapin," she added.

[Don't make the attacks against me like a drama. Just file the cases you need to file with the court and that's where I will face them.]

The House of Representatives said they expect Dayan and Espinosa, an alleged drug lord and the son of slain Albuera Mayor Rolando Espinosa Sr., to testify in their inquiry into the narcotics trade.

In the same inquiry, several convicted crime bosses said De Lima asked them to sell illegal drugs. De Lima, however, has repeatedly denied this.

"Wala akong tinanggap ni isang kusing mula sa kalakaran ng ilegal na droga. Sa tanang buhay ko, lalong-lalo na sa paglilingkod sa gobyerno, hindi ako nakinabang sa anumang katiwalian dahil hindi ko po kailanman kayang talikuran ang tiwala ng sambayanan," she said.

[I never received a cent from illegal drugs. In my entire life, especially during my government service, I have never benefited from any corruption because I don't want to ever betray the trust of the people.]

She also earlier accused the administration of using psychological torture on inmates to force them to fabricate false testimonies against her.