Lucy Letby is a British former neonatal nurse who was convicted of multiple counts of murder and attempted murder of babies in her care. Her crimes occurred at the Countess of Chester Hospital in Chester, England, between 2015 and 2016. Letby's case is notable for its disturbing nature and the extensive investigation it required, highlighting the vulnerabilities within the healthcare system. The details of her methods and motivations remain a subject of intense scrutiny, sparking a national conversation about patient safety and the psychological profiles of individuals capable of such heinous acts.

The investigation into Letby began after an unusual spike in the number of unexplained deaths and collapses of newborns in the neonatal unit. Initially, hospital authorities struggled to identify the cause, but as the pattern became clearer, Letby became a person of interest. Her presence on duty coincided with many of the incidents, and her behavior raised suspicions among her colleagues. Despite initial hesitation from hospital management, concerns grew and eventually led to a formal investigation by the police.

The trial of Lucy Letby captivated the United Kingdom, with daily coverage of the harrowing testimonies from medical experts and the parents of the victims. The prosecution presented evidence showing that Letby had deliberately harmed the infants, injecting them with air or insulin, or overfeeding them with milk. The defense argued that Letby was being scapegoated and that the babies' deaths were due to underlying medical conditions or systemic failures within the hospital. However, the jury found her guilty of multiple counts of murder and attempted murder.

The Lucy Letby case has had a profound impact on the British healthcare system. It prompted widespread reviews of neonatal care practices, whistleblowing procedures, and hospital management accountability. The case also raised questions about the psychological screening of healthcare professionals and the early detection of potential threats to patient safety. The victims' families continue to seek answers and justice, and the legacy of Letby's crimes serves as a stark reminder of the need for constant vigilance and robust safeguards within the medical community. While the specifics of her dominant hand use did not come up in the trial, it is important to remember the focus should remain on her crimes and their impact.

Unknown, Lucy Letby's handedness is not publicly known.