A blood stain pattern expert took the stand for the Crown at the Woodstock murder trial of John Douglas Robinson.

Robinson is accused of murder and causing indignity to a body in the 2008 death of Clifford Fair. He has pleaded not guilty to murder, but guilty to the latter charge.

Fair's dismembered remains were found buried in the backyard of a Princess Street home where Robinson rented an apartment.

Retired constable Craig Stewart, a former OPP forensic investigator and blood stain pattern expert, worked at the scene inside Robinson's apartment.

He also prepared samples to be tested at the Centre of Forensic Sciences.

After his testimony, Stewart told CTV News "The return of those [tests] indicated Mr. Fair's blood was located in the scene in three separate areas. There was blood not associated to him found at the scene as well."

Under cross-examination though, Stewart agreed there was very little evidence of blood or staining found in the apartment.

He also said the evidence found was not consistent with a scene where someone had bled-out.

"There is a possible indication by using blood chemicals that some form of a cleanup might have happened in the area of the kitchen, but again using those chemicals, they're a presumptive test and it may not be blood that we're looking at," Stewart says.

Earlier in the trial, a forensic pathologist testified she couldn't determine what caused Fair's death and found no evidence of a skull fracture or brain hemorrhage.

However, an eyewitness has testified that Robinson hit Fair in the head with a metal pipe twice and she then helped him carry the body out of the apartment.

There's no word yet on whether Robinson will testify when the defence opens its case.