Wayne County Sheriff's Sgt. Brian Glatfelter said he saw the sport-utility vehicle speed through several red lights late Saturday in Westland and he soon discovered a female passenger in the vehicle was in labor, the Detroit Free Press reported Monday.
Glatfelter said he called emergency medical services and grabbed a first aid kit and gloves for himself and the driver, the baby's father.
"I told him, 'We're having this baby right here,'" Glatfelter said. "I was just trying to snap him out of it."
Glatfelter said "nature took its course" and the baby was born before paramedics arrived.
"It kind of felt like when I was in the delivery room with my own kids. I was high-fiving the dad. The mom did all the work. I was just the guide," he said.
Police said the mother and newborn, whose names were not released, were doing well at Oakwood Hospital.