On 5 May 2015, Bassit Sarip, Executive Officer of the N.B.I's Anti-human Trafficking Division, announced that Maria Kristina Sergio was under investigation in a case with the same modus operandi with Veloso, where a Filipina named Judy Tosi was promised employment as a maid in
Thailand in 2010, however when she arrived there to meet Sergio she was then sent to
Hong Kong instead. Sergio also gave Tosi luggage to bring on her trip, and when she arrived at
Hong Kong International Airport Tosi was arrested for drug trafficking after 800 grams of heroin was discovered hidden inside the bag. On 7 May 2015, the
Philippines Department of Justice released a document created by the National Bureau of Investigation containing admissions by Maria Kristina Sergio that she had been working for a Malaysia based
West African international
drug trafficking organization since 2009, where her primary role was to recruit
drug mules from the Philippines to deliver narcotics worldwide. The document further stated that Sergio had travelled extensively to Thailand, Hong Kong, and
Singapore over the previous 6 years, and that she used the promise of gainful employment abroad as a way to entice potential recruits to work as couriers.
Justice Secretary Leila de Lima also released a statement that intelligence from the
Philippine National Police and the
Philippine Drug Enforcement Agency indicated that Sergio had started as a drug mule herself before being promoted to a recruiter on behalf of the crime syndicate she smuggled
narcotics for. On 20 May 2015, Sergio submitted a
counter-affidavit to the Department of Justice in relation to the charges brought by the N.B.I, denying all allegations of involvement with Veloso's legal issues and instead blaming two West African men named "Ike" and "John" for tricking her into carrying the suitcase containing drugs to Indonesia. On 9 July 2015, the Department of Justice approved on the filing of charges of illegal recruitment, estafa, and human trafficking against Maria Kristina Sergio and her partner, Julius Lacanilao. On 18 September 2015, Maria Kristina Sergio and Julius Lacanilao pleaded not guilty to all charges during their arraignment at the Baloc Regional Trial Court in Nueva Ecija. In August 2016, motions were heard to depose Veloso's testimony regarding the human trafficking charges against Maria Kristina Sergio and Julius Lacanilao. The motion was granted, but no time was set for when the deposition was to occur. Judge Reyes denied a defense motion in November to block the deposition, stating she found no compelling reason to reverse her decision. On 13 February 2017, Judge Anarica J. Castillo-Reyes affirmed the motion to take Veloso's deposition, which was set on 27 April 2017. The Court of Appeals ordered a temporary restraining order on 24 March, preventing the prosecutor from interviewing Veloso. Associate Justice Ramon M. Bato Jr., on behalf of the Court of Appeals, issued a proclamation on 22 May finding in favor of the defense motion that disallowed taking Veloso's deposition, because it was claiming that it violated the plaintiffs' right to face their accuser. On 16 June 2017, the Veloso family filed a motion for reconsideration through the National Union of Peoples' Lawyers (NUPL), asking the Court of Appeals to rescind the order preventing the prosecutor from deposing Veloso at the Yogyakarta prison. The family's argument for the motion was that Veloso may run out of time and be executed before she could testify. The motion stated, "No damage can be irreparable as what Mary Jane stands to suffer — to be muzzled before she is silenced forever, to die without ever being heard.” The
Office of the Solicitor General (OSG) also requested the Court of Appeals to reconsider their ruling. The appeals court later affirmed their decision on 5 June 2018 through Bato, dismissing the motion filed by the OSG. On 3 September 2018, the Veloso family, along with their lawyers from the NUPL, took the case to the Philippine's highest court, the
Supreme Court of the Philippines, in an attempt to overturn the decision made by the Court of Appeals. In January 2019, rumors that Veloso had been executed spread, which were denied by both Indonesia's Attorney General's Office and her lawyer. After more than a year, on 9 October 2019, the Supreme Court granted the petition and reversed the Court of Appeals' decision preventing Veloso's deposition, stating that "to disallow the written interrogatories will curtail Mary Jane's right to due process". After a denied motion filed by lawyers from the Public Attorney's Office representing Sergio and Lacanilao, the Supreme Court reaffirmed their 2019 decision in a resolution dated 14 August 2020. Preparations for her testimony have begun, but a final date is yet to be set due to logistics issues caused by the
COVID-19 pandemic, which had affected both the Philippines and Indonesia. On 14 January 2020, the Nueva Ecija Regional Trial Court found Maria Cristina Sergio and Julius Lacanilao guilty in a separate illegal overseas employment recruitment case. Judge Anarica Castillo-Reyes sentenced the pair to life imprisonment and also imposed a PHP2,000,000 fine for violating Republic Act 8042 (a.k.a. the Migrant Workers and Overseas Filipinos Act of 1995). The court ruled that evidence proved both had attempted to recruit three Filipinas (Lorna Valino, Ana Marie Gonzales and Jenalyn Paraiso) for employment abroad, but they did not have the legally required license from the
Philippine Overseas Employment Administration to do so. In December 2020, the Government of Indonesia granted permission for the taking of depositions from Veloso via written
interrogatories under the following conditions: In light of the November 2024 announcement of Veloso's proposed prisoner transfer back to the Philippines, Justice Assistant Secretary Mico Clavano commented that the ongoing case against Maria Kristina Sergio and Julius Lacanilao regarding human trafficking charges at the Regional Trial Court of Nueva Ecija would now proceed much quicker, as it had previously stalled due to Veloso being unable to testify while being imprisoned in Indonesia, and that she would now be able to finally testify against her alleged recruiters in open court. On 30 October 2025, Mary Jane's parents (Cesar and Celia) made an appeal to the
Supreme Court of the Philippines urging them to expediate a ruling from the Nueva Ecija Regional Trial Court that legal hearings relating to Maria Cristina Sergio and Julius Lacanilao could take place from within the
Mandaluyong prison itself, where both Veloso and Sergio were currently incarcerated. Veloso’s family believed that this would expediate proceedings and allow her to take the stand for the prosecution quicker, and thus raise the chances of her being released from custody.{{Cite news |date=30 October 2025|title=Mary Jane Veloso’s kin asks SC to expedite cases vs. recruiters ==Impact==