The child is the daughter of two police officers assigned to the St. Elizabeth Division.
Reports are that the policewoman took the baby to work on Monday for the child's father to take her to a daycare.
However, the child was left inside the car from 9:00 a.m. to 5:00 p.m. while the policeman carried out his duties.
The baby was later found unconscious.
The police high command has expressed deep sorrow at what is being termed "an unfortunate incident". The circumstances surrounding the child's death are to be investigated.
