A U.S. judge on Tuesday ruled that a customs officer improperly canceled the visa of a Russian-born scientist and Harvard University researcher charged with smuggling frog embryos in the U.S.
The opinion said Customs and Border Protection officers have limited authority to cancel visas and can't do so for suspected smuggling of biological samples. The cancellation of Kseniia Petrova 's visa was arbitrary and capricious, U.S. District Court Judge Christina Reiss said in her written ruling.
