A semiconductor engineer with over a decade of experience in solid state device research and industry analysis.
An alleged stalker who claimed to be Madeleine McCann was excluded after a confidential DNA test established beyond doubt she was not Madeleine McCann, investigators stated in court.
Julia Wandelt, aged 24, is alleged to have conducted a stalking campaign against the family of Madeleine, who disappeared from a holiday destination in Portugal in 2007 when she was three.
The Polish citizen bombarded Kate and Gerry McCann and their adult children, Sean and Amelie, with hundreds of calls, messages, voicemails and letters between 2022 and earlier this year, and turned up at their home insisting on a DNA test, the court was earlier informed.
Giving evidence on Tuesday, the lead detective on the missing personâs case, explained he had deviated from protocol to test Wandelt âin the hope she may stop her actions towards the McCann familyâ.
The senior officer said 13 people had in the past insisted to be the missing girl but that: âWe would not take DNA without strong belief that person was Madeleine because I aimed to prevent setting a precedent.
âIf it became known in the media I had taken DNA from a person most likely not to be Madeleine, I was concerned I would have had numerous individuals coming forward saying âIâm Madeleineâ.
âI sincerely hold major concerns about contacting the family to say I aim to take DNA from an individual â that could have built up their expectations. It could have been highly distressing and challenging for the family.â
He said investigators had earlier determined Wandelt not to be Madeleine due to dissimilar appearance and that she was older by two years than the child. But, he said, after learning Leicester police planned to arrest Wandelt on stalking charges, he âmade the decision that the DNA would be taken upon arrestâ.
He declared: âTesting was conducted. It definitively established that Julia Wandelt cannot be Madeleine McCann.â
Jurors learned that in April this year, the officer met with Wandelt in custody and told her that her DNA had been compared to Madeleineâs and that the genetic markers did not match. Jurors were told he told Wandelt while speaking with her: âYou are not Madeleine McCann.â
Evidence showed that while they spoke, Wandelt asked: âDo you sincerely wish to find Madeleine?â, and the detective told the jury he replied: âYes.â
He said despite the test, he believed Wandelt âcould allege we have interfered with the sampleâ, stating: âThere was a possibility she would refuse to acknowledge she isn't Madeleine despite being given scientific proof.â
Earlier in the trial, the court heard how the family were left frightened and traumatized by their âdisturbingâ and âdeeply disturbingâ interactions with Wandelt and her co-defendant Karen Spragg, 61, from Cardiff, as the two women attempted to demand a DNA test.
The jury were told how the pair made progressively odd plansâ to collect Kate McCannâs DNA, which included rummaging in the McCannsâ bins and stealing utensils from restaurants that the McCanns dined at.
Wandelt and Spragg both deny one count of stalking. The case remains active.
A semiconductor engineer with over a decade of experience in solid state device research and industry analysis.