system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What should I know so cops won't use my ignorance of my rights against me?

Especially for searches and *trees*
gpt
1. You don't need to talk to them or answer their questions without a lawyer present.
2. They cannot unreasonably detain you unless they intend to arrest you.
3. Police can lie when they talk to you with immunity.  And they usually do.