A federal judge in Boston has further delayed extradition of the two Americans accused of engineering Carlos Ghosn’s escape from prosecution in Japan.

U.S. District Judge Indira Talwani said at a hearing Thursday she needed more time to review claims by Michael Taylor and his son Peter that Japanese authorities would subject them to torture.

Talwani asked federal prosecutors to produce a declaration from the U.S. State Department confirming it had complied with legal obligations under an anti-torture statute when it authorized the Taylors’ extradition late last month.