Chief Superintendent Wayne Minnaar said JMPD officers had stopped a car near Northgate Mall around 8pm.
“It is alleged that drugs were found inside the car and that the male driver jumped out and ran inside the mall,” said Minnaar.
The officers chased the suspect, who then collapsed.
“It is alleged that he swallowed the drugs, and dropped dead.”
The incident would be investigated to establish exactly what had happened, Minnaar said.