BOONE COUNTY, Ind. (WHAS11) -- Lawyers argued extensively over nearly a dozen motions including allowing blood splatter experts and gun residue evidence. Just months before David Camm's murder trial in Boone County, Ind.
Camm, a former Indiana State Police trooper, was wearing a bullet-proof vest as he was escorted to a lengthy three hour hearing in Lebanon for his third trial in August.
The prosecution and defense went back and forth over blood splatter evidence and DNA testing after blood was found on Camm's clothes.
Camm's lawyers said Charles Boney, who was already convicted in connection with the death's of Camm's wife and children, was responsible for the murders. Boney was accused of giving Camm the gun used in the murders. Boney is expected to testify along with Keith Henderson, the Floyd County prosecutor who was removed from the case.
Questions also arose about limiting alibi witnesses and comments about Camm's behavior after his family was killed.
Camm was convicted twice for the September 2000 murders of his wife, Kim, and their two children, Brad and Jill, at their Georgetown home. Both convictions were later overturned on appeal.
His lawyers claim the case was tainted by investigators with tunnel vision, shoddy police work and biased experts.
The court will reconvene at 9 a.m. Tuesday.
For more WHAS11 coverage on the David Camm trial, click here.