Constable Lay had been a serving police officer for less than 18 months, having graduated from the police force's Goulburn academy last May. She was remembered as a passionate and promising young officer adored by colleagues in the South Sydney area command and the tight-knit Redfern police station where she was stationed.
A police procession accompanied her casket into the cathedral, including her partner, Daniel Vasquez. The service brought together family, friends, and fellow officers to honour the officer who died in the line of duty.
The crash occurred in Redfern, in Sydney's inner-south, during what was a routine patrol. Investigations into the circumstances of the collision remain ongoing.