Can police lie or use tricks during an investigation?

Police Tricks and Tactics to be aware of…

The Police may legally lie, bluff, mislead and intimidate you.
Most “avoidable arrests” occur from trickery and intimidation and failing to understand your rights and when to assert them.

Makes an admission of guilt
Consents to a search.
Offer information that is unresponsive to the questions asked.
Refusing to answer questions is not an admission of guilt
Asserting your right to remain silent is not an admission of guilt
Demanding to have your lawyer present during any questioning is not an admission of guilt
Refusing a search is not an admission of guilt.

If you are free to leave, and not being detained, what you say can and will be used against you.
Miranda Rights are required to be read only if you are in “police custody” and you are being interrogated.
Miranda warnings are not required to be read to you when you are arrested. If you are in police custody and you are not Mirandized, and you begin to talk or discuss something, and you have not been Mirandized, the statements can and will be used against you.
If you are in custody… the police have no obligation to Mirandize you.
Miranda Warnings are not required when the police are merely investigating, and the requirement of Miranda only applies after the police have arrested you, seized your person and specifically have begun to interrogate you, and or illicit information about the investigation or the alleged crime that has resulted in your arrest or custody.
One of the Operative facts for 4th Amendment issues is the Seizure, arrest or detention of the person.

“Have you had anything to drink tonight?”
Best response: is NO
Where are you coming from? It is best to have this answer pre-prepared so as to not raise suspicion.
You can answer the Officers questions by stating “Respectfully officer, I don’t have to answer that.”
“Not answering is suspicious, why are you not answering my question, clearly you are doing something wrong?” Best Answer: “Officer, respectfully I am aware of my rights, and constitutional protections, and I know I have no legal obligation to answer your questions.
“Not answering is resisting me in this investigation” Best Answer: “I’m not resisting, respectfully, I don’t have to answer anything.”
“If you have nothing to hide, you don’t mind if I look around.” Best response: “I’m sorry Officer, but I don’t consent to searches.”
“If you refuse a search, I’ll have to call a K-9 unit.”
Best response: “Officer, are you detaining me, or am I free to go?”
Officers cannot detain you past the purpose of the traffic stop and detaining you beyond this purpose is constitutionally illegal. Specifically officers cannot detain you beyond the traffic stop for the purpose of calling for a k-9 unit or drug sniffing dog.

Refusing to answer questions is not an admission of guilt
Asserting your right to remain silent is not an admission of guilt
Demanding to have your lawyer present during any questioning is not an admission of guilt
Refusing a search is not an admission of guilt.