A Perth mother has alleged her teenage son was left without immediate police assistance after being brutally attacked by a group of machete-wielding youths outside a suburban house party, as fresh criticism emerges over the handling of the investigation and the legal outcome for one of the alleged offenders.

The incident, which occurred on Good Friday in the northern Perth suburb of Mindarie, left 17-year-old Lucas Jeisman with deep wounds requiring hospital treatment and has since become the focus of growing public attention following his mother’s emotional interview on The Karl Stefanovic Show.

Lucas suffered multiple lacerations to both legs, extensive bruising and other injuries after allegedly being surrounded and attacked by a group of youths armed with long blades. Video footage circulating after the incident appeared to show several attackers striking and slashing the teenager while others kicked and stomped on him after he fell to the ground.

He was admitted to Joondalup Health Campus, where he remained for two days while doctors treated serious cuts requiring stitches. Although his physical injuries have healed, his family says the psychological impact has proved far more enduring.

According to his mother, Leisa, Lucas has since been diagnosed with post-traumatic stress disorder (PTSD), and she says the teenager who left school only recently to begin an apprenticeship has struggled to return to the confident young man he was before the attack.

Speaking publicly about the events, Leisa alleged the family’s ordeal extended well beyond the violence itself.

She claimed Lucas approached police officers at the scene while bleeding heavily and asked for medical assistance, telling officers he believed his shoulder had been broken and that he needed an ambulance.

Instead, she alleged officers ignored his requests and ordered him to leave the area.

Leisa further claimed one officer later drove after Lucas, restrained him and pushed him against a fence while repeating instructions for him to leave the street.

She said she initially found her son’s version of events difficult to believe.

“Kids can stretch stories sometimes,” she said, explaining that she later spoke with nearby residents who had witnessed the incident and believed their accounts supported what Lucas had described.

The allegations have become a central point of the family’s criticism of the police response.

Leisa also claims that after she spoke publicly about the attack, a senior police officer visited her home and suggested Lucas had been “the aggressor” during the incident.

She disputes that characterisation and says she was also told no ambulance had been requested because officers reportedly observed “no signs of injury”—an explanation she says is inconsistent with her son’s visible condition following the assault.

Western Australia Police have not publicly responded in detail to each allegation made during the television interview.

The force’s publicly available information encourages anyone dissatisfied with police conduct to pursue formal complaint processes through established oversight mechanisms, while emergency medical assistance is ordinarily coordinated according to operational assessments at incident scenes.

Leisa also questioned the speed of the criminal investigation.

She said her son personally knew many of the youths allegedly involved because they had attended school together and could identify them by name.

According to her account, she repeatedly contacted investigators seeking arrests, arguing that video footage and witness evidence should have enabled police to move more quickly.

She alleged four teenagers were eventually arrested and charged only after sustained pressure from the family.

The family’s frustration intensified after learning that one of the accused youths allegedly avoided receiving a criminal conviction despite the seriousness of the incident.

Leisa questioned how such an outcome could be justified given the injuries suffered by her son, saying she felt justice had not been delivered.

Because court proceedings involving juveniles are generally subject to strict legal protections in Australia, detailed information about individual children’s court outcomes is often not made public.

The case has also reignited discussion about youth violence involving edged weapons in Perth and across Australia.

While fatal stabbings and machete attacks remain relatively uncommon compared with many other forms of violent crime, several high-profile incidents over recent years have heightened community concern about young offenders carrying large knives.

Police agencies across multiple Australian states have responded with targeted operations aimed at reducing knife-related offending, including weapon searches, intelligence-led investigations and public awareness campaigns designed to discourage young people from carrying blades.

Western Australia has also experienced several widely reported incidents involving machetes in recent years, contributing to growing public debate about community safety and sentencing outcomes for violent offenders.

Lucas’s case has attracted additional attention because his family believes the response from authorities compounded the trauma caused by the attack itself.

Leisa said she has sought access to police body-worn camera footage from the night but claims her request was refused.

She has also lodged complaints with oversight authorities and continues to pursue further answers regarding the operational decisions made by officers attending the scene.

During her interview, she argued the experience had fundamentally changed her family’s confidence in policing.

She said the events of that night left her questioning who members of the public could rely on during violent emergencies if they believed police had failed to respond appropriately.

Her comments have resonated with broader community conversations about accountability, transparency and victim support following serious violent incidents.

At the same time, legal experts frequently caution that allegations made publicly before the completion of complaint investigations or court proceedings should not be treated as established findings of fact.

Police operational decisions are often made under rapidly evolving and highly dangerous circumstances, with officers balancing immediate public safety, securing crime scenes, identifying suspects and coordinating emergency services.

Whether those decisions complied with professional standards is typically assessed through formal review processes rather than public commentary alone.

For Lucas, however, those broader debates remain secondary to his personal recovery.

His mother says the physical wounds eventually healed, but the emotional consequences continue to shape his daily life.

She described a young apprentice whose future appeared bright before the assault but who now lives with ongoing anxiety associated with the traumatic experience.

Her hope, she says, is that greater scrutiny of the case will lead not only to accountability where appropriate but also to improvements in how victims of violent crime are treated in the immediate aftermath of serious incidents.

The criminal matters arising from the alleged attack remain subject to the legal process, while questions surrounding the family’s complaints about the police response continue to attract public interest in Western Australia.