use immunity

Từ điển WordNet v3.1 - WordNet Dictionary

noun

an exemption that displaces the privilege against self-incrimination;
neither compelled testimony or any fruits of it can be used against the witness who therefore can no longer fear self-incrimination
• Syn:
testimonial immunity
• Hypernyms:
exemption, immunity, granting immunity
• Hyponyms:
transactional immunity