An intoxicated woman drove herself to the local cop shop and told police she was too drunk to drive.

Blenheim woman Amanda Jane Boyd, 50, of Witherlea, thought she was doing the right thing when she told front counter police staff she was too inebriated to make the trip to Christchurch about 2pm on June 14 and asked if they could arrange to get her there, the Marlborough Express reported.

When officers asked how she got to the station, Boyd pointed to her car but admitted she was too drunk to continue on her journey.

She was charged with drink driving for the third or subsequent time and appeared in Blenheim District Court today.

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Judge David Ruth said Boyd had a serious problem with alcohol, the Marlborough Express reported.

"It was an exceptionally high amount of alcohol in your system, however it's not the highest you've had."

He convicted Boyd and remanded her on bail for sentencing next month.