Decatur County Sheriff's Deputy Robert Griffin was responding to a call around 9:30am Thursday morning, when he lost control of his patrol car and collided with a tree.
Troopers say the 44 year old was killed instantly.
A memorial service to remember the fallen officer will be held at the First United Methodist Church at 1pm Monday. The funeral service is expected to follow at the Bainbridge Cemetery.
As many as 700 people are expected to attend the service that will be open to the public.