Because it could be a dead give away to if someone is in danger around you.
Answer:
Self-incrimination, or also called self-crimination or self-inculpation, or pleading the 5th amendment
Explanation:
from comments...
I think you can put government or industry and other things
<span>The Judicial Procedures Reform Bill of 1937 (frequently called the "court-packing plan") was a legislative initiative proposed by U.S. President Franklin D. Roosevelt to add more justices to the U.S. Supreme Court.</span>