AUGUSTA — A charge of operating after suspension against a former Augusta woman was dismissed Tuesday in Kennebec Superior Court after she successfully completed a 12-month deferred disposition.

Gina Lynn Turcotte, 46, of Winslow, had pleaded guilty to the April 5, 2012, charge a year ago, and the disposition was deferred for one year. On Tuesday, she withdrew that plea and the case was dismissed.

In exchange for the earlier plea, six other motor vehicle-related charges against her were dismissed.

In a separate case also in Kennebec County Superior Court, a charge of assault July 3 in Randolph was dismissed against Dennis R. Briggs, 38, of Richmond.

The dismissal “in the interests of justice” was filed Wednesday by the district attorney’s office as a jury, which had been selected earlier, was awaiting the start of the trial.

In yet another case in the same court, a jury found Jeremy M. Staples, 22, of Chelsea, guilty of operating under the influence and operating a vehicle beyond license restriction.

Staples, who was convicted Wednesday in a one-day trial, was sentenced to 180 days in jail, with all but 10 days suspended, and one year of probation. He was fined $700 and his driver’s license and registration privileges were suspended for three years.