(a) After the issuance of a warrant, a person for whose return a warrant was issued is a fugitive from justice.
(b) The law relating to the right of the state to extradite a person and return a fugitive from justice and Article 42.11, Code of Criminal Procedure, relating to the waiver of all legal requirements to obtain extradition of a fugitive from justice from another state to this state, are not impaired by this chapter and remain in full force and effect.