What the Thomas Zaja Case Should Teach You: Nobody Checks
At 3am on 17 October 2025, a tactical police team used explosive charges to get through the gates of a Canberra property. Thomas Zaja, a 34-year-old earthworks contractor, was dragged from his bed in his underwear and taken down a flight of metal steps.
He says he came away with two broken ribs and a broken tooth. He was held in the street at gunpoint for about an hour. So was his 56-year-old mother, Katherine, who lived on the property and who walked out of her front door in a dressing gown to find a firearm pointed at her.
Zaja spent the next two weeks in the Alexander Maconochie Centre.
Five months later, an ACT magistrate found the conduct of both the police and the prosecution in his case to be "egregious". A week after that, the Director of Public Prosecutions offered no evidence and all 14 charges were discontinued.
This article is not about whether Thomas Zaja is a good man. It is about the machinery, and about one question that matters enormously if you are ever on the wrong end of it: who, in that entire apparatus, had the job of checking whether the allegations were true?
The answer turns out to be nobody in particular. And that is the part worth understanding.
The Issue
When the case came before Campbell, police made astonishing admissions.
In cross-examination, Woodhouse asked David Edwards: “Do you accept the complainant has fabricated evidence to support those allegations?”
“It appears that way, yes,” the constable replied.
When Woodhouse asked if the evidence established that the woman lied to the police, Edwards answered “Correct”.
The gross mishandling of evidence extended to Zaja’s mobile phone, which had been seized by police in August.
When the police officer who was compiling the brief of evidence, Constable Vincent Killeen, failed to show up in court, he was reached by phone – and revealed that the reason he wasn’t in court was that he had just dropped off Zaja’s phone that morning at Digital Forensics – seven months after it was seized.
In cross-examination, Woodhouse asked him: “You failed in that responsibility?”
Killeen replied: “Yes, that is correct.”
During the March hearing, the prosecutor claimed that despite having exonerating evidence, the DPP still needed more time to review the matter.
Campbell excoriated the police and prosecution from the bench.
“I find the entire conduct of both the police and the DPP to be egregious,”
she said, noting that the authorities were already well aware the evidence was faked.
“The police officer, the informant, today has expressed a belief that this complainant has fabricated evidence,”
“The DPP presumably have that knowledge, and they have had that knowledge since January and no one has done anything about it. It is unbelievable. And this matter stands out, in my mind, in a serious way and reflects very poorly on your office.”
The DPP abandoned all charges against Zaja.
Magistrate Campbell awarded him costs and directed the registrar to provide a transcript of the proceedings to the Chief Police Officer and to AFP Professional Standards.
Woodhouse is calling for an apology and compensation, and has also asked that the woman be investigated and charged, stating:
“Her despicable conduct is a prime example why those who chant the ‘believe all women’ mantra are so misguided. My client further expects that police and the DPP will investigate whether a culture shift whereby all allegations made by complainants are blindly accepted has contributed to this miscarriage of justice.”
The timeline
The dates are the story here, so set them out plainly. They come from court reporting, from the ACT DPP's own published media statement of 30 March 2026, and from ACT Policing's response to media questions.
5 August 2025. Zaja is arrested on a first series of charges and granted bail the same day. His mobile phone is seized.
17 October 2025. He is arrested a second time, on further charges relating to the same complainant. This is the raid. Bail is refused. He spends two weeks in custody. On the day of the arrest, his solicitor Peter Woodhouse of CODA Criminal Law tells investigators his client says the allegations behind two of the charges are fabricated.
3 December 2025. Police receive extracted information from the complainant's phone and begin reviewing it.
24 January 2026. Prosecutors tell Woodhouse that police have found evidence suggesting the complainant sent the anonymous threatening messages to herself. Reporting indicates the analysis showed an anonymous texting service had been paid for through an Apple wallet, and that a message had been sent and then deleted on a date she said Zaja had harassed her.
26 January 2026. Woodhouse writes to prosecutors arguing that if the complainant has no credibility, no allegation resting on her account can be proved beyond reasonable doubt. He asks them to reconsider every charge.
11 February and 12 March 2026. He writes again. Twice.
18 March 2026. ACT Policing provides the extracted phone material to the DPP. This is three and a half months after police received it.
20 March 2026. At a hearing before Magistrate Jane Campbell, the investigating officer accepts under cross-examination that the complainant lied to police on multiple occasions, and that it appears she fabricated evidence. Separately, the officer compiling the brief of evidence fails to appear. Reached by phone, he explains that he had that morning delivered Zaja's phone to Digital Forensics. It had been in police possession since August. Seven months.
The prosecution asks for more time.
27 March 2026. The DPP offers no evidence. All charges are dropped. Campbell awards costs and directs that a transcript go to the Chief Police Officer and to AFP Professional Standards.
What the magistrate said
Campbell's findings are on the public record and they are not ambiguous. She found the entire conduct of both the police and the DPP to be egregious. She found the delay had caused significant prejudice to a man who had signalled from the outset that he intended to fight.
Of the investigating officer's concession that the complainant had fabricated evidence, she called it an extremely damning assessment. She noted that the DPP knew since 24 January and that nobody had acted on it. That it had not been resolved before reaching court on 20 March, two months later, she described as "unbelievable".
Those are judicial findings made in open court by a magistrate who had the file in front of her. They are the most authoritative thing anyone has said about this case.
The core of Magistrate Campbell’s frustration lies in the timeline. The police officer admitted under questioning that the complainant likely fabricated the evidence. Yet, the DPP’s office maintained they only received the complete report suggesting this adverse view on March 18. This gap between January and March represents a dangerous opacity in the prosecution pipeline.
Prosecutors are not merely advocates; they are ministers of justice with a duty to disclose exculpatory evidence promptly. The Australian Law Reform Commission has previously emphasised the critical nature of this obligation in maintaining fair trial rights. In their report on traditional rights and freedoms, the Commission noted:
“The prosecution’s duty of disclosure is a fundamental component of the right to a fair trial… Failure to disclose material that may assist the defence undermines the integrity of the judicial process.”
What the agencies said back
The ACT DPP published a formal statement on 30 March. Its position is that on 24 January it possessed only advice that police had formed an adverse view of the complainant's credibility, not the underlying material on which that view was based. It says it actively sought that material from police, received it on 18 March, and made a determination within seven business days.
It notes the matter involved multiple alleged incidents over several years, and that the brief served by police included photographs of injuries and audio and video files. It says the alleged lies related to discrete charges within a wider alleged course of conduct.
It also says something more striking. It says the case demonstrates the system operating as intended, because the DPP independently reviewed the police brief rather than simply adopting the police view. It adds that it would no longer be appropriate to make quick judgements about a complainant's veracity in complex family matters.
ACT Policing said concerns about potential exculpatory material were raised in January but could not be confirmed until a device was forensically examined, which happened in March. It said the circumstances would be considered to identify any learnings.
In this case, the two-month lag between internal knowledge and action violates the spirit of continuous review mandated by the ACT DPP Prosecution Guidelines. The DPP’s defence—that the matter was complex, involving multiple incidents—does not fully explain why a fundamental contradiction in the evidence did not trigger an immediate reassessment. When exculpatory evidence sits dormant in a file while a defendant remains bail-conditioned or jailed, the system ceases to protect the innocent.
So where did it actually break?
Strip out the rhetoric, and the failure has a shape. Police held the complainant's phone data from 3 December. The DPP did not receive the extracted material until 18 March. Whatever the explanation, that is where the months went. The prosecutor cannot assess material it has not been given, and the defence cannot force the pace of a forensic queue.
What is of concern is that even AFTER receiving the evidence that Zaja had not committed the offence, the DPP still continued with their prosecution.
Meanwhile, Zaja's own phone, seized in August, sat unexamined until the morning of the hearing that ended the case. Nobody disputes this. The officer conceded the failure in court. If that phone contained anything exculpatory, it was sitting in an evidence locker for seven months while he was on bail, separated from his young son, and borrowing heavily to pay lawyers and keep his business alive.
And notice what did not happen at any point. The claim that Zaja was an armed and violent outlaw motorcycle gang member was, by every account, false. He had never been a member of any such gang. That claim helped justify the manner of the raid. Nobody appears to have tested it before a tactical team blew the gates open at 3am.
Courts decide what is put before them. And a man still loses seven months of his life because no one linked the question "is this actually true?"
What this means if you are in it
This site exists to help people protect themselves, so let me be practical.
Do not assume anyone is checking. Not the police, not the prosecutor, not the court. They are processing. If there is exculpatory material, someone has to find it, preserve it, and put it in front of them, and realistically that someone is you and your lawyer. Zaja's solicitor told investigators the allegations were fabricated on the day of the arrest. It still took over five months.
Preserve everything immediately, and do not rely on the system's copy. Phone records, messages, location data, financial records, calendars, photographs. Back it up somewhere that is not the device police may seize. If a device is seized, it may be a very long time before anyone looks at it, and you cannot control that queue.
Metadata wins cases. What resolved this matter was not testimony. It was a payment record for an anonymous texting service (made by Zaja's former partner) and a deleted message with a timestamp. Digital forensics are unglamorous and decisive. Think about what a forensic examination of the whole record would show, not just about what you remember.
Put your position in writing, early, and keep asking. Woodhouse wrote on 26 January, again on 11 February, again on 12 March. That correspondence became the spine of the argument that the delay was inexcusable, and it is very likely why costs were awarded. Written representations that go nowhere at the time can be worth a great deal later.
Expect the timeframes to be institutional, not personal. The system will move at the speed of forensic queues, listing dates and workload. Your life will move at the speed of a life. Nobody in the building experiences that gap the way you do.
Get a lawyer if you possibly can. Zaja borrowed hundreds of thousands of dollars. That is a brutal thing to say to someone reading this at 10 PM after a long day at work, and I am not going to pretend it is easy. But this case turned on competent, persistent, documented advocacy, and it is the single clearest lesson in it.
Two things we are not saying
We are not saying that most family violence allegations are false. They might or might not be. Less than 10% of family violence order applications are ever tested in court, and less than 4% of those are confirmed as true. About 40% of the claims tested in court are shown to be false (4% overall), as they were in this case.
Family violence is real, common and lethal, and men constitute about one in three of the victims. The protective parts of this system exist for good reason. A case where the system failed a defendant does not become an argument against protecting complainants. If anything, as Woodhouse himself put it, false allegations do a disservice to every genuine victim. In this case, Zaja was the victim of family violence by his ex-partner.
I am also not saying you cannot trust anybody, though I understand why people arrive at that after reading a story like this. The more accurate and more useful proposition is narrower: no individual actor in the system has been assigned the job of independently verifying an allegation on your behalf, and you should plan accordingly. That is not a conspiracy. It is a design flaw, and it is a design flaw you can partly protect yourself against by being the person who documents everything.
The complainant in this matter has not, on any public record we can find, been charged with anything. Zaja's lawyer called for her to be investigated. As at the time of writing, no public outcome has been reported, nor has any public finding from AFP Professional Standards emerged since Campbell sent them the transcript in March.
The cost
Zaja did not get his months back. He has spoken publicly about the toll: the debt, the business, the time away from his son, and about how close the whole thing brought him to not continuing. He is not unusual in that.
“Why did it take so long? Why didn’t the police investigate or the DPP? What were they doing?”
“It’s obvious why so many fathers kill themselves. Every morning driving to work, I think, if I just pull the steering wheel right straight into a truck, finish at all. But I can’t do that to my son.”
Men going through this process are at elevated risk, and the reason this site keeps returning to the psychological cost of these proceedings is that it is the part the system measures least and inflicts most.
If the record here reads as bleak, take the practical part instead. You cannot control whether anyone checks. You can control what exists to be found when they finally do.
Keep the receipts. Keep the timeline. Keep your integrity. Those are yours.
Sources: reporting by The Australian (31 March 2026), The Canberra Times (29 March 2026) and Region Canberra (2 April 2026); the ACT DPP media statement of 30 March 2026; and ACT Policing's statements to media. Findings attributed to Magistrate Jane Campbell were made in open court in the ACT Magistrates Court on 20 March 2026.
Nothing here is legal advice. If you are dealing with a live matter, get advice from a lawyer or your community legal centre.
If any of this has raised concerns for you: Lifeline 13 11 14, MensLine Australia 1300 78 99 78, or 1800RESPECT 1800 737 732. In an emergency, call 000.
Comments