Coming Tuesday on THE News at 6 p.m.- WTOC Investigates: The Truth on Trial

SAVANNAH, GA (WTOC) - A former Savannah-Chatham Metro Police Department homicide detective is preparing a lawsuit against the Chatham County District Attorney claiming, among other things, his prosecution was racially motivated and that an assistant district attorney called to the stand in that trial lied to prejudice the jury.

Kevin Grogan even released a book on his time with Metro police and the case the District Attorney brought against him.

Several months after Grogan was charged with D.U.I for crashing his unmarked patrol car in 2014, Meg Heap's office added two felony charges to the case.

A jury found Grogan guilty of D.U.I but not guilty of the other charges.

Grogan insists that in the midst of prosecuting several black police officers for corruption at the time, Heap needed a white officer to face corruption charges to avoid the appearance she was selectively prosecuting only blacks.

Grogan says the effort failed but not before Heap's staff lied on the stand to try and get the former officer convicted.

"There are individuals in that office who have proven again and again that they will do anything to further a political agenda," Grogan said. "And then you have to hold the elected official, the District Attorney herself accountable because it's the burden of command."

On Tuesday, July 18 on THE News at 6, a special investigation into the charges Grogan is making against your district attorney, Meg Heap, and her assistant DA's.

I'll take a closer look at the case that put the threat of prison in this former cop's future, and the testimony that many say deserves an independent investigation into the conduct of the Chatham County District Attorney's Office.

"The Truth on Trial", next Tuesday on THE News at 6.

Copyright 2017 WTOC. All rights reserved.