Aset Magomadova, seen on Oct. 7, 2009, received a suspended sentence for strangling her teenage daughter. ((Doug Hanley/CBC))

The Crown is appealing the suspended sentence for a Calgary woman who strangled her teenage daughter.

Last week, Aset Magomadova was given three years' probation for manslaughter in the death of her 14-year-old daughter, Aminat. The pair had a deadly fight in their southeast home in February 2007.

Crown prosecutor Goran Tomljanovic filed a notice of appeal Tuesday, arguing that the sentence is "not proportional to the gravity of the offence and the culpability of the offender."

Court of Queen's Bench Justice Sal LoVecchio accepted the recommendation of defence lawyer Alain Hepner in placing Magomadova, 40, on probation - with conditions to take counselling and anger management - over the Crown's argument for a 12-year prison term.

The mother was acquitted of an original second-degree murder charge.

"The sentence imposed was demonstrably unfit in that it failed to adequately address deterrence, denunciation and retribution," wrote Tomljanovic in outlining his reasons for the appeal.

He also said the judge "erred in principle in his assessment of the aggravating circumstances."

Self-defence claimed

The trial heard that the mother and daughter got into a fight over the teen's refusal to attend court for assaulting a teacher at her school. Magomadova said Aminat attacked her with a knife in the sewing room of their home.

The mother said she reacted by wrapping her head scarf around the teen's neck in an attempt to get the girl to put the knife down.

The medical examiner testified it would have taken 2 1/2 to five minutes for the girl to die from continuous strangulation.

Magomadova, who lost a foot in an explosion and uses a crutch, came to Canada from war-torn Chechnya in 2004 with her two children and her sister.

The court heard that Aminat was spiralling out of control — habitually running away from home and boasting about using drugs, having sexual partners and stealing.