Napoles's business interests date back to the early 1990s. In 1993, she solicited for investments in a shipyard in
Cebu, promising 5% interest on all investments. It was later discovered that the money was not invested in the shipyard: according to Col.
Ariel Querubin, who was a friend of the Napoles family, the money they had invested in the shipyard was reportedly invested elsewhere, with Napoles pocketing the interest. While the investment was eventually recovered, Querubin claims the investment led to the death of his first wife. Napoles has been linked with an alleged misuse of PDAF, together with Philippine Senators
Bong Revilla,
Jinggoy Estrada,
Juan Ponce Enrile, and other congressmen. She was convicted of plunder on December 7, 2018, for her involvement in the PDAF scam, with the conviction being upheld by the Sandiganbayan anti-graft court on March 13, 2019. In 2021, the Sandiganbayan convicted Napoles on three counts of graft and three counts of malversation, along with Cagayan de Oro Rep.
Constantino Jaraula and three others, in connection with the pork barrel scam. Napoles was sentenced to 6 to 10 years imprisonment for each count of graft and 12 to 18 years for each count of malversation. Napoles stole government funds through the state-owned Technology and Livelihood Resource Center and the nongovernmental organization Countrywide Agri and Rural Economic Development Foundation. In October 2023, Napoles was convicted by the Sandiganbayan of 9 counts of corruption of a public official while former
APEC party-list Rep. Edgar Valdez was convicted of 9 counts of direct bribery. Also in October 2023, the Sandiganbayan convicted Napoles of 4 counts of graft and 4 counts of malversation of public funds, in connection with the PDAF of former South Cotabato Rep. Arthur Pingoy Jr.
Illegal detention case Napoles was accused of illegally detaining Benhur Luy, her cousin and former employee in 2014. Luy's three-month custody under Napoles ended in March 2014. Napoles alleged that Luy took a ₱5.5 million loan under her name without her authorization. She also alleged that Luy was supposed to deposit ₱300,000 into her account but did not do so, accusing Luy of theft. Luy insists that he was detained by Napoles due to fears that he would expose Napoles's alleged significant role in the PDAF scam. Lim was later found guilty beyond reasonable doubt and was sentenced to
reclusión perpetua on April 14, 2015. Napoles and her lawyers have indicated that they will appeal the decision to the
Court of Appeals.
2017 motion to acquit The Office of the Solicitor General with the court of appeals filed a "manifestation in lieu of rejoinder" recommending the acquittal of Janet Lim Napoles in the Luy detention case. This motion by the Solicitor General
Jose Calida was backed by Philippine President
Rodrigo Duterte, who said that he himself would move for the dismissal of the case citing selective prosecution under Aquino administration. The criminal actions must proceed against all responsible according to Duterte.
Fertilizer fund scam Napoles and six others were indicted in 2018 for their involvement in the
Fertilizer Fund scam. The group was indicted for graft and malversation of public funds over PHP5 million worth of projects, including the anomalous purchase of fertilizers in 2004 in
Surigao del Norte. Fertilizer funds totaling ₱728 million were allegedly diverted in a vote-buying scheme involving favored local officials.
Malampaya fund scam Napoles is facing charges for her alleged involvement in the Malampaya fund scam. The case involves the misuse of ₱900 million sourced from the fund for disaster response operations in the aftermath of
Tropical Storm Ondoy (Ketsana) and
Typhoon Pepeng (Parma) in 2009. The amount did not go to the communities affected by the disasters, but was allegedly plundered after being released to nongovernmental organizations linked to Napoles. Napoles was charged for plunder by the National Bureau of Investigation before the Ombudsman in October 2013, along with former President Gloria Macapagal-Arroyo, former Budget Secretary
Rolando Andaya, former executive secretary
Eduardo Ermita, former agrarian reform secretary Nasser Pangandaman. Napoles and Andaya were charged in 2019 before the Sandiganbayan for allegedly violating the Anti-Graft and Corrupt Practices Act. ==Personal life==