SENTENCED: Frances Stubbs emerging from the Blenheim police station after she was first questioned about the fatal accident.

A 20-year-old Blenheim woman who fled a police alcohol check-point killing another driver has been sentenced to eight months' home detention.

Frances Carol Stubbs had admitted driving with excess blood alcohol causing death and was sentenced by Judge Bruce Davidson at the Blenheim District Court this afternoon.

She was also ordered to complete 160 hours' community work and was disqualified from driving for three and a half years.

Stubbs fled a police checkpoint and collided with Penelope Phillips, 51, on the roundabout between Nelson St and Hutcheson St in Blenheim about 9.45pm on March 19.

She was later found to have 120 milligrams of alcohol per 100 millilitres of blood. The legal limit is 80mg. The charge carries a maximum of five years' imprisonment or a fine of up to $20,000.