A bloodsucking creature helped Australian detectives solve an eight-year-old crime this week. In September 2001, two thieves entered an elderly woman’s cabin, tied her up and stole several hundred dollars in cash. Detectives found a leech at the crime scene and extracted blood believed to belong to one of the burglars. The police recorded the blood’s DNA, but they didn’t have a match on file.
Fast-forward eight years. Australian police arrested a man named Peter Cannon on drug-related charges. They took a DNA sample, and found that it matched the blood extracted years earlier from the crime scene leech. Cannon has been charged with the 2001 burglary, and he faces a sentence up to 21 years.