When the Bones is in the diner with Sweets she is holding a cup but in the next scene she is holding a utensil.
When Dr. Soroyan informs Angela that the prelim tox result was negative for embalming fluid, she says, "So he was never buried in a sanctioned grave." Embalming is never required under law due to religious objections from Jewish, Muslim, and many other religions.
The victim, Mayhem, was the bassist of a *death* metal band called Spew. Yet members of Spew wear corpse-paint ("penguin face-paint"), which is the traditional stage and promo shoot make-up for *black* metal bands.
MO of the Norwegian police is very far from reality. They would not be armed and probably not stop the concert at all. It's also highly unlikely that an anthropologist or medical examiner would have been sent to examine the bones on site, they would simply have been confiscated and sent to the nearest hospital for examination.
No European or American police force would have sent SWAT team to a situation with no clear and present threat. Storming the concert (and thus, creating an unnecessary risk to bystanders) instead of seizing the remains and/or detaining the band after the event would most likely result in disciplinary actions against officers issuing such course of action.
When Angela is showing Brennan and Camille the videos of the concerts, she tells them she can't show a more detailed picture of the girl because of poor cell phone video quality. But she then immediately shows them a higher rendered video of Mayhem as he's shot in his backside.
Engelsviken is shown as nestled at the end of a fjord with mountains in the background, when in reality the village is situated right at the coast in one of the flatter areas of Norway.
When the forensics are talking about how skull (Skalle) is pronounced in Norwegian, Clark Edison is actually the one who pronounces the word correctly, despite Brennan's insistence otherwise.
The team discusses the Norwegian annual murder rate of 0.7, and Brennan says that means less than one murder a year. Since murder rates are given as murders per 100,000 citizens, the Norwegian murder rate works out to about 33 murders per year.
When Pinworm is in the interrogation room and everyone is commenting on the bullet he is wearing around his neck, no-one is making any comment about the barbed wire he has circling his neck. The bullet might be the totem, but the barbed wire is the supposed murder implement.
Bones describes a 'blood eagle' as a torture method. As an anthropologist, she should have been aware that this was a method of execution vaguely described only twice in all known Norse literature with not a single solid piece of archaeological evidence backing it up. So, being Bones, she should have referred to it as a legend or simply discarded it as a tangential trivia.