Diamond Reynolds faces two assault charges for allegedly taking part in a hammer attack on a woman in February.
Reynolds was sitting next to Philando Castile, who was black, when he was shot during a July traffic stop by St. Anthony police officer Jeronimo Yanez. Yanez was recently acquitted by a jury.
Reynolds told the court Wednesday she expects to travel the country next month for television appearances. One of her attorneys said Reynolds will go to London in August for an art exhibit created in her honor.
Her attorney filed a motion to dismiss the charges on Wednesday, claiming she was not at the scene of the crime.
Reynolds declined comment on her criminal case. Her trial is scheduled for Aug. 28.
(© Copyright 2017 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)