A Peterhead dog owner admitted ordering her Staffordshire bull terrier to attack another woman in the town last year.
Vickilee Galloway, 37, set her dog on Stacey Findlay after the two women started arguing in February 2015 in an incident in which an elderly man was also injured.
During the incident part of Ms Findlay's ear was torn off.
Galloway admitted assault by inciting her pet to attack Ms Findlay.
She was remanded in custody as sentencing at the High Court in Aberdeen was deferred.