BOSTON (AP) — A federal judge on Wednesday granted a government motion to dismiss all charges against a Russian-born scientist who was accused of smuggling frog embryos into the United States.

Kseniia Petrova, who was conducting cancer research for Harvard Medical School, was indicted last year on one count of concealment of a material fact, one count of false statement and one count of smuggling goods into the United States. She had been charged with the smuggling before that.

She told The Associated Press in an interview that she did not realize the items needed to be declared and was not trying to sneak anything into the country.

The case began to fall apart in April, after a federal judge ruled a customs officer improperly canceled Petrova’s visa over the incident.…