; or (II) an alien who has a serious medical condition such that continued detention would be life-threatening or would risk serious bodily injury, disfigurement, or permanent disability; or (v) in the case of an alien returned to a foreign territory contiguous to the United States pursuant to section 235(b)(2)(C), it is necessary to parole the alien into the United States for an immigration proceeding. (D) Limitation on the use of parole authority The Secretary of Homeland Security may not use the parole authority under this paragraph— (i) to circumvent immigration policy established by law; (ii) to admit classes of aliens who do not qualify for admission under established legal immigration categories