Charlie joked, "Well, if you were sent over while being unaware, would you fail to find any clues?"

"Yes, I would fail," Merlin nodded. "Most cold cases stay cold because there's no usable evidence anyway. Not even divine intervention helps unsolved cases that ultimately stem from a lack of evidence.

"You see, in almost every country, there are always some cases that are solved years down the line, often because the officers finally managed to salvage evidence that eventually proved decisive…