In 2019, the Offender Database recorded that then 26-year-old Bertalan Oszlanszki was sentenced to two years and eight months in prison for the grooming and sexual exploitation of a schoolgirl. Appearing at Oxford Crown Court, the defendant—of Oak Drive, Kidlington, Oxfordshire—admitted to sexual activity with a child, sexual communication, and making indecent images. It was reported that Oszlanszki, who was stored in the victim’s phone under the name ‘baby’, had used FaceTime and messaging software to groom the child.
The investigation established that Oszlanszki sent “depraved” messages to the victim, including one stating he was “deeply in love” and another pressuring her to delete their communications. Thames Valley Police reported that the pair had been spotted by eyewitnesses kissing passionately and holding hands in Oxford. The prosecution reported that after Oszlanszki’s phone was seized, investigators discovered six indecent images, including semi-naked FaceTime captures and one image featuring a penetrative sexual act.
Judicial Findings and Investigative Detail
The court reported that Oszlanszki continued to send sexual messages to the child even after being questioned by police. Oxford Crown Court heard that the defendant used emotional manipulation, at one point telling the girl that if he didn’t answer her, it was “probably because he is dead.” The investigation established that Oszlanszki’s defence barrister attempted to mitigate the crimes by describing the “vicious” exploitation as a “two-way street,” suggesting the child was a participant—a claim the court rejected as part of the grooming process.
Judge Maria Lamb described the relationship as an “unhealthy association” and identified Oszlanszki’s actions as clear “grooming behaviour.” For his actions in Kidlington and Oxford, Oszlanszki was handed a custodial sentence of 32 months. The judge noted that the defendant’s attempts to pressure the victim into hiding evidence demonstrated a calculated effort to maintain his “vile” access to the child while evading the law.
Status and Statutory Requirements
For the crimes reported in England, the status of Bertalan Oszlanszki as of late 2019 was as follows:
- Custodial Sentence: 2 years and 8 months (Sentenced 2019).
- Sex Offenders Register: Notification requirements are active for 10 years.
- Judicial Oversight: Sentenced at Oxford Crown Court following a Thames Valley Police investigation.
- Criminal Record: Sexual activity with a child; Sexual communication; Making indecent images.
- Origin: Oak Drive, Kidlington, Oxfordshire.
Monitoring and Public Protection
Oszlanszki is managed under Multi-Agency Public Protection Arrangements (MAPPA) within the Oxfordshire area. Due to the nature of his conduct in Kidlington, which involved the “vicious” digital grooming of a schoolgirl and the production of penetrative sexual imagery, his management is a priority. Authorities state that his history of using encrypted messaging and FaceTime to facilitate abuse requires the most intensive digital monitoring by the Public Protection Unit upon his release.
As a registered sex offender, Oszlanszki’s details are logged on the national police database for a decade. Authorities state that his predatory behaviour in Oxford demonstrated a total lack of regard for the age and vulnerability of the victim. Any future attempt to contact the victim, use unmonitored digital hardware, or fail to notify police of his address will result in immediate arrest to ensure the ongoing safety of the community and to uphold the protection of children from a confirmed “perverted” offender.
If you or anyone you know has been affected by the individuals highlighted on this website, please report them to the Police on 101 (999 in an emergency) or visit their online resources for further details on reporting a crime. You can also report to Crimestoppers if you wish to remain completely anonymous. There is help available on our support links page.

