MANDEVILLE, Manchester - Tasheca Graham is forever grateful for the swift response of two police constables who came to her rescue on the night of January 9, as she was on the brink of delivering her son while stranded in a broken-down car.Graham, her spouse and two relatives were on their way to Mandeville Regional Hospital when the unthinkable happened. Their car broke down at Hatfield, about five kilometres away from the institution.