The Woman Who Was Never There: 16 Years Hunting a Killer Who Did Not Exist
On the afternoon of Wednesday 25 April 2007, a police patrol car pulled onto a wide gravel field in the German city of Heilbronn, about 50 kilometres north of Stuttgart. The field is a fairground. In April it was empty.
The two officers inside were on their lunch break. It was warm. Nothing about the day was unusual.
One of them was Michele Kiesewetter. She was 22 years old and had been a police officer for around two years.
Someone walked up to the car from behind.
Both officers were shot in the head at close range through the open windows. Kiesewetter died. Her colleague survived, after months in hospital, with permanent injuries and no memory at all of what had happened.
The attackers took both service pistols, both sets of handcuffs and a pair of sunglasses. Then they walked away across the gravel.
There were no useful witnesses. There was no motive anybody could see. Two uniformed officers had been shot in daylight in a quiet provincial city, and the scene offered the investigators almost nothing except the traces the forensic team lifted out of the car.
One of those traces was DNA from a woman.
Here is what happened next, in one paragraph, because the rest of this story only makes sense if you know it in advance. The female profile was already in the German national DNA database. It had been recovered from a murder scene 14 years earlier, and since then from burglaries, from a syringe, from a stolen car, from crimes in three different countries. Police concluded that one woman had been active across Europe since 1993, and that she had now shot two police officers. For the next two years several hundred investigators hunted her. She did not exist. The DNA had never belonged to any criminal at all.
The profile that was already notorious
The first appearance was in May 1993, in a small town in western Germany. A 62-year-old woman was found strangled in her home with wire taken from a flower arrangement. Traces were secured from a cup. At the time they could not be analysed. In 2001, when the technique had improved, the old material was run again and produced a complete female profile.
The same profile then surfaced in March 2001 in the southwest of Germany, where a 61-year-old man was murdered in his flat.
It surfaced again in October 2001, on a syringe connected to a drug death.
It surfaced on the remains of a biscuit inside a trailer that had been broken into.
From that point it kept appearing, and the appearances made no sense together. A robbery of a gemstone dealer in France in 2004, where the profile was on a toy pistol left behind. A fight between two brothers in 2005, where it was on a fired bullet. More than 20 break-ins across Germany and Austria between 2003 and 2007, including an optician's shop. A burglary in 2006 that was only analysed two years later.
In January 2008, three men from Georgia were shot dead inside a car in western Germany. When the traces were analysed that March, the profile was there again. In October 2008 it appeared once more, on the body of a nurse found dead in a town near Heilbronn. By then the German press had given the unknown woman a name of its own: the woman without a face.
By the time the patrol car in Heilbronn was examined, the unknown woman was linked to dozens of scenes. In the end the count reached 40 crimes in three countries, six of them murders.
What the investigators thought they were looking for
A serial murderer who also steals biscuits is not a normal pattern, and the investigators knew it.
They tried to force the evidence into a shape. One idea was a woman living on the road, moving between countries, drifting between violence and petty theft. Another was that several people were somehow sharing the same profile, which genetics says is essentially impossible outside identical twins. Another was that the person was a man with a rare condition, because nobody could quite accept the behaviour as female.
The one piece of physical evidence that did seem informative pointed east. The analysis of the profile suggested ancestry from eastern Europe. That single indication shaped the search for years, and pushed attention towards travelling communities.
A permanent task force was set up in Heilbronn. It was given the codename Parkplatz, the German word for parking lot, after the gravel field where Kiesewetter was shot.
By January 2009 the reward for information had been raised to 300,000 euros, one of the largest ever offered in Germany. Hundreds of officers in three countries were working the case.
The detail that was visible the whole time
Investigators did notice things that did not fit.
The crimes were too varied. The distances were too large. At some scenes the profile turned up on an object nobody would expect a burglar to touch, and not on the objects they clearly had touched.
And there was the map.
The phantom appeared in one group of German states, in Austria and once in France. She never once appeared in Bavaria, the large German state that borders much of the area where she was supposedly busiest, and which has exactly the same kinds of crime.
That hole in the map was treated as a curiosity. It was in fact the answer, and it had a dull administrative explanation: the Bavarian police bought their cotton swabs from a different supplier.
All 40 traces had one thing in common that nobody ever wrote down as a common factor, because it was not considered evidence at all. Every one of them had been collected on a cotton swab.
March 2009: a burned body and an old form
The case did not break through better policing of the murders. It broke sideways, through an identification.
Investigators were trying to put a name to the burned body of a man, an asylum seeker. There was an old asylum application form in the file, and the form carried his fingerprints. Officers swabbed the fingerprints, hoping to recover cells that would confirm who he was.
The test came back with the phantom's profile.
That result was not merely surprising. It was impossible. A man's fingerprints cannot produce a female DNA profile. Something in the chain had contributed the DNA, and the only thing in the chain that touched every single one of these cases was the swab itself.
The police ordered fresh swabs, still sealed in their packaging, straight from the supplier, and tested them without ever taking them to a crime scene.
The phantom was on them.
The factory
The swabs came from a medical supply manufacturer in Austria. They were sold as sterile, and they were sterile. That was the trap.
Sterilisation kills bacteria, fungi and viruses. It does not remove human DNA. A dead skin cell is still a source of a complete genetic profile, and a swab can be perfectly sterile and still carry the genetic fingerprint of whoever handled the cotton during packing.
The swabs were never certified as free of human DNA, because at the time no such certification existed. Nobody had thought to ask for one.
The profile belonged to a woman who worked on the production line. Reports at the time noted that the workforce included women from eastern Europe, which is precisely the ancestry indication that had steered the investigation for years.
On 26 March 2009 the German authorities announced that there was no phantom. The woman on the line had committed no crime. She has never been publicly named, and there is no reason she ever should be.
What the error actually cost
The financial cost was large. The real cost was worse.
For two years, the murder of a police officer was investigated on the assumption that a woman had done it. Everything was filtered through that assumption. Leads that did not involve a woman were worth less. A false fact sitting at the centre of an investigation does not simply waste time. It bends every decision made around it.
Six murders were connected to each other for no reason. Investigators in three countries compared notes on a link that was an artefact of a factory in Austria.
The case changed forensic practice worldwide. In 2016 the International Organization for Standardization published ISO 18385, the first international standard requiring that swabs, tubes and other forensic consumables be manufactured to minimise human DNA contamination, with batch testing and with DNA records kept for factory staff so that a stray profile can be recognised immediately. The standard exists because of this case.
The other wrong assumption
While hundreds of officers hunted a woman who did not exist, a second German investigation was going wrong in almost exactly the same way.
Between 2000 and 2006, nine men were shot dead inside their own small businesses in cities across Germany. Eight were of Turkish origin and one was Greek. They were killed in a snack stand, a grocery, a tailor's shop, a key kiosk, an internet cafe. The same pistol was used again and again.
Investigators concluded early that the killings came from inside immigrant communities, and looked for organised crime, drugs and protection money. The German press gave the series a nickname taken from fast food, which told the families exactly how their fathers and brothers were being classified.
The relatives were questioned as suspects. Several were told that the dead man must have had secret debts or a hidden second life. One daughter said later that the killers took her father's life and the investigators took his honour.
For 11 years, nobody at the centre of that investigation seriously pursued a racist motive.
Two enormous investigations were running at the same time in the same country. One was certain the offender was a woman. The other was certain the motive was crime among immigrants. Both were wrong, and both were wrong in the same way: an assumption nobody tested was allowed to decide which evidence mattered.
In 2012 the German Chancellor apologised publicly to the families.
Who really shot the policewoman
On 4 November 2011, more than four years after Heilbronn, two men robbed a bank in eastern Germany. Hours later, with police closing in, they were found in a burning camper van. One had shot the other, then himself.
Inside the van, officers found the two service pistols taken from the patrol car in Heilbronn, along with one set of the stolen handcuffs.
The two men belonged to a small neo-Nazi cell of three people that called itself the National Socialist Underground. Between 2000 and 2007 it had murdered ten people. Nine of the victims were immigrants or the children of immigrants, shot in their shops and businesses. The tenth was Michele Kiesewetter.
For years those killings had been investigated separately, and the families of several victims had themselves been treated as suspects.
In July 2018, after a trial in Munich lasting more than five years, the third member of the cell, a woman, was convicted on ten counts of murder, including Kiesewetter's, and sentenced to life imprisonment with a finding of particularly grave guilt, which in German law removes the normal prospect of release after 15 years.
The men who fired the shots were dead. The case against them was never tried.
**And this is the point where the documented record stops: the court established who killed Michele Kiesewetter, but never established why she in particular was chosen.**
Conclusions and Open Questions
Two separate mysteries sit inside this case, and only one of them is solved.
The phantom is solved completely. There was no woman. There was a contaminated product, an untested assumption, and a forensic system that had come to treat a DNA match as an answer rather than as a question.
Why the policewoman was killed is still open. The competing explanations each carry a problem.
**She was chosen because of where she came from.** The evidence: she came originally from the same eastern German region as the cell, and spent time there. The problem: the court examined this at length and found no personal connection of any kind. Coincidence looks meaningful from the outside more often than it actually is.
**They wanted the weapons.** The evidence: they took both pistols and the handcuffs, and kept them for years. The problem: the cell already had firearms, and had been using them for seven years. Shooting two police officers in daylight is an extraordinary risk to run for equipment you already own.
**It was an attack on the state itself.** The evidence: the group's ideology, and the fact that it had no interest in money from these killings. The problem: it is the only attack on police in the entire series. Every other victim fitted a different and very consistent pattern.
**It was opportunistic.** The evidence: the fairground was empty, the officers were parked, the approach from behind was easy. The problem: it does not explain why the cell was in that city at all, which was never satisfactorily established.
One further question has no answer at all, and it is the uncomfortable one.
The contamination was only discovered because a test produced a result that was biologically impossible, and because someone refused to explain it away. Every other case in those 16 years produced results that were merely surprising, and surprising results get rationalised.
Nobody knows how many other investigations, in how many other countries, were pointed in the wrong direction by a clean sterile swab that came out of the packet already carrying someone else's life.