Under the Fifth Amendment, anyone who is being questioned by the police has a right to remain silent. They cannot be forced to answer questions, and they cannot be forced to incriminate themselves. Whether you are guilty or innocent of the allegations you are facing, you can simply exercise your right to remain silent whenever you deem it appropriate.
Often, to do this, it is best to make your intentions known by stating them out loud. Do not just sit there silently, or police officers may continue asking new questions. Interrogations are often long-term affairs, and they may hope that they can wear you down so that you will say something that can be used against you.
To prevent this, just politely inform them that you would like to use your right to remain silent. You may also want to tell them that you will not answer any questions until you have spoken with your attorney.
Why is doing this helpful?
When you make this intent known, then the police will typically stop asking questions and wait for the next stage. So this is helpful in the short term because it puts an end to the interrogation.
From a broader perspective, you always need to remember that the things you say may be used against you in court. Even if you have done nothing wrong, you do not want to speak while you are in a stressful situation and say something that may imply that you are guilty. It is often better to talk to your attorney and come up with an appropriate defense strategy moving forward.
Addressing serious charges can be complicated, and you have to consider the impact on your future. Be sure you know exactly what legal options you have at this time.