Meanwhile, Hermione had begun working on the blood specimen. She needed to determine if there was any evidence of potions in the victim's bloodstream. If the victim had been magical, the potential for that was relatively high. It was not uncommon to take daily potions for various ailments and preventative treatments, like birth control. Once she had confirmed presence, she’d need to begin the painstaking task of isolating ingredients and then reverse engineering what potion the victim had ingested, willing or not.