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Brazilian woman, 38, accused of years of ‘elaborate fraud’ by posing as a child

Published June 12, 2026 · Updated June 12, 2026 · By Jennifer Smith

Brazilian Woman Accused of Years-Long 'Elaborate Fraud' by Posing as a Child

Brazilian woman 38 accused of years - In a startling case of identity deception, a 38-year-old Brazilian woman has been detained in the southern state of Santa Catarina, facing charges of fraud and false identity for allegedly pretending to be a 12-year-old girl. The accused, Amanda Maria Souza de Oliveira, reportedly lived with a couple in the city of Joinville for over 16 months, during which she claimed to be a child and gained access to their home under the guise of vulnerability. The couple, who had taken her in after she approached them at an evangelical church, were initially told she was 18 years old and had financial and health challenges that required her care.

The investigation into Oliveira's alleged deception has revealed a complex web of lies. According to authorities, she maintained a fabricated identity for years, convincing her hosts that she needed protection and support. During her time with the couple, she was provided with a private bedroom adorned with children’s toys and furniture, and even celebrated what was described as her 12th birthday with a party. Her hosts reportedly believed she was a minor, unaware of her true age and motives. The case has sparked widespread attention in local media, with many questioning how Oliveira managed to sustain her ruse for such an extended period.

Authorities have indicated that Oliveira's alleged fraud is not an isolated incident. Records show she was previously charged in multiple Brazilian states for similar schemes. Public prosecutor Viviane Soares described the investigation as uncovering “an elaborate fraud scheme involving the creation of a fictitious identity and the emotional manipulation of victims to obtain undue advantages.” These charges suggest a pattern of behavior that has led to multiple victims across different regions. The current case in Santa Catarina is now under scrutiny as part of a broader examination of her alleged criminal activities.

“An elaborate fraud scheme involving the creation of a fictitious identity and the emotional manipulation of victims in order to obtain undue advantages.”

Oliveira’s alleged deception began when she approached the couple at their church, presenting herself as Gabrielle and stating she was 18. She told them she had been struggling financially and was in poor health, which led the couple to believe she needed their help. However, she later altered her story, claiming she was actually 11 years old and appeared older due to her father’s alleged use of hormones and sexual abuse. This narrative was used to persuade the family not to formally enroll her in school or initiate an adoption process, as she argued that doing so might allow her father to locate her.

The unraveling of her scheme came after an aunt, who occasionally visited the couple, became suspicious of Oliveira’s age. Investigating further, the aunt discovered online reports of a similar case in Rio de Janeiro from three years prior, where Oliveira had allegedly deceived another family. This revelation prompted authorities to launch a deeper inquiry into her activities. As the investigation progressed, additional evidence emerged, including videos and photographs shared by other alleged victims that depicted Oliveira using childlike mannerisms and props such as dummies and baby bottles to reinforce her false persona.

Oliveira’s history of deception extends back to the late 2000s in her home state of Ceará. At that time, she was already in her 20s but claimed to be 12 years old, asserting she had been forced into sex work by her parents. This early case highlights her ability to craft and maintain a false identity for extended periods. The current arrest, however, marks a significant escalation, as she has now been accused of a scheme that spanned more than a year and involved living with a family under the pretense of childhood.

Legal proceedings have been temporarily halted as Oliveira’s defense team, led by Rafael Luiz Siewert, has argued for a psychiatric evaluation. Siewert stated that after interviewing Oliveira, he had “identified elements that justified requesting a psychiatric evaluation.” The judge has agreed to this request, delaying the trial until a psychological assessment determines whether she is fit to stand in court. Despite this pause, Oliveira remains in custody, awaiting the results of the evaluation.

The case has raised questions about the role of trust in human relationships and the ease with which individuals can exploit it. Oliveira’s ability to manipulate her hosts through emotional appeals and a carefully constructed identity has left many in disbelief. The couple, who initially felt compassion for her, now face the aftermath of their decision to provide shelter and support. Meanwhile, authorities are working to connect this case with others, suggesting a broader network of fraud that may have affected multiple families across Brazil.

As the investigation continues, it is clear that Oliveira’s story is not just one of personal gain but also of psychological strategy. Her alleged use of childlike behavior, coupled with the creation of a detailed backstory, demonstrates a level of sophistication in her deception. The case serves as a reminder of the potential for fraud to thrive in environments where empathy and vulnerability are leveraged for personal benefit. With the trial suspended and the psychiatric evaluation underway, the public remains keenly interested in the outcome of this high-profile case.