The legal battle comes after her planned euthanasia in August faced a last-minute suspension due to objections from her father, facilitated by the Christian Lawyers organization. He contests her decision, arguing she suffers from a personality disorder affecting her judgment and emphasizing the state's obligation to safeguard vulnerable lives. He also highlighted her apparent improvement from rehabilitation treatments and indicated she has fluctuated in her choice regarding euthanasia.

As the case unfolds in Barcelona, various experts, including members of the euthanasia board and specialists in neuroscience and psychiatry, are set to testify. Currently, Spain's euthanasia law, enacted in 2021, has reached unprecedented circumstances, as this is the first case necessitating a judicial decision. A previous ruling in Barcelona had denied a father's attempt to block his son's euthanasia, establishing a precedent in this evolving landscape of assisted dying laws and ethics.