https://www.vg.no/nyheter/i/jQr3Oq/opplysninger-til-vg-siktet-for-aa-ha-voldtatt-fornaermede-i-eget-hjem

Charged with raping the victim in her own home

Police believe Marius Borg Høiby (27) raped a woman in her 20s in her own apartment in Oslo – early in the morning on Palm Sunday this year. The assault is said to have taken place just after 8 a.m. in an apartment in central Oslo, where the victim is a registered resident.

The police opened a case and decided to investigate the alleged rape on their own initiative. They then contacted the victim and summoned her for questioning. Over the past few weeks, she is said to have been questioned several times. Her lawyer said that her client does not really know Marius and is not part of his inner circle.

Crown Princess Mette-Marit's son was arrested by the police in a car on Monday between 23h and midnight. The arrest took place at Hvalstad in Asker, not far from the Crown Prince and Princess' property at Skaugum.

“We made the arrest because there was a risk of evidence being lost in the case. I can't go into more detail about it, other than to make it clear that it was a tactical and technical investigation,” police prosecutor Andreas Kruszewski told VG newspaper.

When the police arrested Høiby, the woman from the Frogner domestic incident was in the car with him. The police believe that Høiby physically and mentally abused her for nine months, from January to September this year.

So if I am interpreting this correctly, together with the info released by police earlier today that this was not p-in-v intercourse, then Marius must have filmed or photographed himself either using her hand or mouth and police came across this material somehow, probably while investigating the previous domestic violence against his girlfriend. Given that the rape victim was passed out and/or drugged at 8am in the morning and does not know him and it wasn't the victim that went to police, but the police that presented evidence of the rape to the victim… That seems the most likely chain of evidence to me based on police statements so far.