If there is no basis, no one has the right to demand the President to do a hair follicle test.

This was the response of Palace Press Officer and Communications Undersecretary Claire Castro to those asking President Marcos to undergo follicle drug test, stressing the burden of proof is upon those accusing the President of drug use.

"Kahit saan po na kaso, kung sino iyong nagbibintang, siya ang magbigay ng pruweba. Hindi ninyo puwedeng sabihin na, na ito gumagamit, patunayan mong hindi. Hindi po iyon ang tamang logic. Kayo pong nagbibintang, kayong humihingi, na nagde-demand sa Pangulo, kayo muna ang magpatunay na mayroon siyang ginagawang mali (In any case, it is always the accuser who must present evidence. You cannot just say, 'He’s using drugs, prove that he’s not.' That is not the correct logic. You who are accusing, who are demanding this from the President, you must first prove that he is doing something wrong)," Castro said in a Palace briefing on Thursday, April 10.

"Kapag wala po kayong napatunayan, wala po kayong karapatang humingi sa Pangulo ng anumang demand patungkol sa hair follicle test (If you cannot prove anything, you have no right to demand anything from the President regarding a hair follicle test)," Castro added.

The Palace official stressed one cannot simply make up stories without evidence to ruin the President’s reputation.

Meanwhile, on the issue of the altered "polvoron video" of Marcos, which was proven to be manipulated by government law enforcement agencies, Castro said it is no longer a new information as the public must have already know who was behind the manipulated video.

"So, hindi na po bago ito sa pananaw ng taumbayan kung sino ba talaga ang naging utak o ang nagpakalat ng fake 'polvoron video' na ito (So, this is no longer new for the public, on who was really behind the spread of the fake polvoron video)," Castro said.

The President, she added, has left it to the authorities for investigation.

"Dahil ito naman po ay inimbestigahan na rin po, natatandaan po natin na inimbestigahan po ito, in-evaluate din po ito ng PNP at ng NBI, at nagkaroon na rin po ng fact check, at nagsagawa po ng panibagong pag-iimbestiga kung ito ay tunay o hindi pero napatunayang manipulated ang sinabing video at may face swap – ito ay galing din sa evaluation ng Deepfakes Analysis Unit na part of India-based Misinformation Combat Alliance (Because this was already probed and evaluated by the PNP and NBI, and there was a fact check as well. A new investigation was also conducted and it was proven that it was manipulated and there was a face swap—this came from the evaluation of Deepfakes Analysis Unit of India-based Misinformation Combat Alliance)," Castro said.

"So, hindi po ito lingid sa kaalaman ng Palasyo dahil ang nais po lamang ng Pangulo ay maipakita sa taumbayan na hindi totoo ang kanilang pinapakalat na video at hindi totoo ang kanilang ibinibintang sa kaniya (So, this is no longer new for the Palace because the President only wanted the people to know that the video and the allegations against him were not true)," Castro added.

During the House Tri-Committee’s fourth hearing on April 8, vlogger Vicente Bencalo “Pebbles” Cunanan claimed that former presidential spokesperson Harry Roque was allegedly involved in spreading the altered “polvoron video."