An alleged armed robbery on Madison's west side Tuesday transformed into a drug investigation that led to the arrest of a Madison man on drug-related charges.
The suspect, 30-year-old Ace Davis, was arrested on tentative charges for disorderly conduct while armed and possession of marijuana, according to the police incident report.
A 19-year-old Madison man told Madison Police officers he was robbed at knifepoint in an Alison Lane parking lot after he went into a friend's van, Madison Police Department spokesperson Joel DeSpain said.
The victim's story fell apart after officers found the van parked on nearby Tree Lane. Officers found the suspect and another person inside the van where there was a strong smell of marijuana, police said.
""A police dog arrived and indicated there were in fact drugs inside,"" DeSpain said in a statement.
Three small bags of marijuana were found inside an air duct vent, police said. Police also recovered a knife.
