"Dagdag–Bawas" scam With the vote counting happened in May 11, one of the Lakas–Laban candidates Senator
Aquilino Pimentel Jr. stated that there are alleged senatorial candidates outside the unfinished tally's top twelve spots were beginning to rig votes by bribing people involved in the electoral process that time. He also said that two of candidates in Lakas–Laban revealed to him that a vote-buying scam called "Oplan Dagdag–Bawas" () was occurring in Mindanao, where canvassers are bribed to shave off votes meant for Pimentel and transfer them to other candidates. Unfortunately, he admitted that he lacks evidence for that claim, while a Comelec Commissioner dismissed the allegation as false. By late 1995, the
Senate Electoral Tribunal ordered to deduct more than 58,000 "unlawfully credited" votes for
Juan Ponce Enrile in
Bataan and
Isabela from his tally, alongside 7,000 votes for
Ramon Mitra. By mid-1996, the Comelec Commissioner who dismissed the allegation, reversed his stance from the previous year and found that Comelec found evidence of widespread cheating during the election counting. An executive director of Comelec later stated that the most recent election was the first time "dagdag-bawas" was committed on a massive scale. Also, Senator
Serge Osmeña discovered that there is 30,000 votes discrepancy for him in
Pasig between the manual tally done by the Treasurer's Office and the certificates of canvass. By the end of 1996, Bataan RTC ordered the arrest of Cenon Uy, an assistant regional director for Comelec in
Central Luzon, for having allegedly tampered with election results in the region to favor the candidacy of Enrile, though he would remain in office until late 2000 when a pending court case against him forced his resignation. On February 10, 2000, Antonio Llorente and Ligaya Salayon, who were respectively Pasig City prosecutor and member of the Pasig board of canvassers at the time of the election, was charged by the
Supreme Court for violating election laws after they admitted their "honest mistake" of taking away votes from Pimentel and transferring them to Enrile. Llorente eventually went on indefinite leave from his position as
Justice Undersecretary in September due to the Supreme Court standing by its ruling. On September 11, 2000, Arsenia Garcia, who was chair of the
Alaminos, Pangasinan municipal canvassers during the election, was convicted of electoral fraud by a
Regional Trial Court in Alaminos due to her discarding more than 5,000 votes that were in favor of Pimentel, and sentenced to six years in prison. ==Senatorial Slate==