Aurin Makepeace stabbed Steven Rothwell to death and then tried to claim that his victim had died accidentally. The Crown Prosecution Service (CPS) praised the jury for seeing through "Makepeace's layers of lies". But the CPS and the whole of the criminal justice system is complicit in layering on lie after lie to cover up the fact that Makepeace is a man. It starts with calling him "she" in its own press release. The vast majority of violent crime is perpetrated by men. But "she" tells you a person is female; more likely to be a victim than a perpetrator, unlikely to be physically able to overpower an adult male.

The CPS gave no clue in its public statement on the case that Makepeace is a man, instead claiming: "Woman found guilty of murdering her ex-partner". It omitted details of the relationship that preceded the crime - the victim and the perpetrator met when they were both incarcerated in the same men's prison.

It even went so far as to create a video showing what is clearly a woman's hand holding a mobile phone, purporting to represent Makepeace calling in the murder to the police.

Makepeace called himself "Katie" when he called 999. He said he was still at the address in Macclesfield when he had already made his escape to rural North Wales. He told the operator that Steven had attacked him and that the stabbing was self-defence.

All of these were lies. So is the claim that Makepeace is a "woman" and that "she" could possibly have had the hands the CPS used in its video.

Everyone involved in the criminal justice system - the victims, the witnesses, the suspects and the jury - deserve to be told the truth, and so does the public.

The police and others on the frontline of investigation and crime prevention are asked to use their judgment to assess whether people are lying or telling the truth. Yet they are also told to collude in the lie that a man can be a woman.

A 43-year-old man overpowering and stabbing a 41-year-old man to death after assaulting a woman in the street is a brutal crime, and a tragedy for the victim and his family. If the perpetrator had been a woman it would have been extraordinary.

When the CPS was caught out in the deception of presenting Makepeace as a woman it changed its story, deleting the social media post and the video and putting out a new press statement "Guilty: Murderer who stabbed ex-partner to death". The statement admits that Aurin Makepeace was "born male", as if this was a fact relating to his birth not to his whole life, and continues to refer to Makepeace as "she" and "her" throughout.

In fact, like everyone else born male, Makepleace remains male - he was male when he committed the violent crime, when police were searching for him, when he was arrested, when he was searched, when he was held on remand, when he lied to the police and to the court, when he was found guilty of the crime and now while he awaits sentencing.

Under the current policy of the National Police Chiefs' Council he could have demanded to be searched by a female officer, and the police would have done their best to provide one. It is likely that he is recorded as female in police and justice system records. There has been no public information about which prison he has been held in while on remand: if he has been held in a women's prison that is a disgrace.

The CPS said: "We recognise the significant concern our coverage of this case has caused" and made the excuse that "Our post reflected the terminology used in the court proceedings".

This is just not good enough. The language used in court proceedings and throughout the justice system should be the truth, the whole truth and nothing but the truth.