Forensic testimony dominated the morning of the third day of the trial in Saskatoon of a 50-year-old woman charged with second-degree murder.

Frances Sugar is accused of fatally stabbing her 34-year-old daughter, Lindey, on a grid road south of Saskatoon in 2014.

The Crown and defence submitted an agreed statement of facts to the jury. The ten-point document revealed that a jackknife located in the ditch near the crime scene had Lindey Sugar's blood on it, and that a vodka bottle had her DNA. It also confirmed her identity, when the 9-1-1 call was made and the accuracy of an area map.

The jury also saw photos taken of Frances Sugar in the RCMP cellblock hours after the death of her daughter. She had a variety of superficial wounds to her face, plus some bruising to her leg.

Yesterday, court heard from Dennis Kissling, a man who was driving with the pair down a gravel road, around eight kilometres south of the city.

Kissling told the jury the mother and daughter had started fighting - partly over money gained from selling Ritalin outside a local coffee shop and partly over Sugar's bad parenting.

Eventually, Kissling said the pair got out of the car and started fighting. Then, he saw Frances Sugar stab her own daughter in the neck.

The trial continues all week.