A forensic investigator is back on the stand in the Cal Harris murder trial. Harris is accused of killing his wife in 2001. Tamara Lindstrom has more.

SCHOHARIE, N.Y. -- Blood stains found in the Harris home are still at the center of the Cal Harris murder trial.

Harris is accused of killing his wife, Michele in 2001.

Thursday, forensic investigator Steve Anderson was called back to the stand, for cross examination by the defense. His testimony was interrupted Wednesday, so the prosecution could call forensic scientist, Dr. Henry Lee to the stand.

During cross examination of Anderson Thursday morning, the defense focused the size of the blood stains found in the garage.

So far experts for the prosecution have indicated the presence of blood stains in both the garage and foyer.