A Mataura woman who trashed an Oamaru liquor store on Sunday before returning to unleash a tirade of abuse at staff had drunk more than four litres of cider, police say.
Officers were called to the disorder incident at Super Liquor Oamaru in Thames St shortly before 5pm, after a report a woman had become aggressive when she was refused service because of her drunken state.
A police spokeswoman said the ''grossly intoxicated'' 35-year-old allegedly threw an eftpos machine and launched signage around the store before she abruptly left, only to return a short time later to deliver a barrage of verbal abuse.
With her was a 39-year-old Oamaru woman, who a police spokeswoman said drove the younger woman to pick up more alcohol after the pair each downed three 1.5-litre bottles of scrumpy cider.