Police drug-sniffing dogs versus my rights

What are my constitutional rights when the police call in drug-sniffing dogs?

thank you

Your rights do not disappear if the officer threatens to call in the dogs, so don’t let this all-too-common tactic intimidate you into consenting to a search.

Before the dogs arrive, you have the right to dismiss yourself by asking if you are free to go. But if the officer detains you until the dogs come, remain silent and refuse to consent to any searches.

If a K-9 unit arrives, you should never consent to a dog sniff even if the officer claims you have to (which would be a lie). Remember: Unlocking your car at the officer's request or handing the officer your keys is the same as consenting to a search.