Of course you have the right to refuse taking a polygraph exam. That you are even being asked to do so means you need to engage a criminal defense attorney asap.
In my jurisdiction, there is no requirement that an individual take a polygraph test. Unless I am missing something, I can't imagine that the law could be different in SC.
A polygraph is an interrogation. You always have the right to refuse to answer questions, and to demand that a lawyer be present for any questioning.
If you're a suspect in a murder, that's exactly what you should do. Refuse to answer questions and talk to a lawyer. You hear it on TV, "Anything you say can and will be used against you." So, you should say nothing to the police.
Despite AVVO's link at the bottom of their page indicating "Free Legal Advice," the information provided by this attorney does not constitute legal advice. The information offered is for general educational purposes only. The answer provided does not create an attorney-client relationship nor does the attorney answering the question warrant that the answer conforms to existing law. THIS ANSWER IS PROVIDED SOLELY FOR INFORMATIONAL PURPOSES.
You have the right to refuse and you should absolutely refuse to do it. They are NOT admissible in trial and I have yet to see one work to the benefit of anyone suspected by police in a criminal case. If you have a lawyer and they are asking you to take one that will not be disclosed to the government then that may be a different situation. Also, if you have struck a deal with the state or federal government and you made that part of the agreement then you have placed yourself in a rock and a hard place. But I think you can see the best advice for you would be to obtain a lawyer or if you already have run this question by them and make sure you understand the context of which the test is being offered and the potential consequences if you decide to go forward with one.
Most certainly do NOT submit to a polygraph. Consult and retain an experienced local criminal defense attorney ASAP. Be aware and beware.
PLEASE DO NOT USE THIS RESPONSE as the reason to say or do anything regarding your case or situation. This answer/response is based on the information provided in your inquiry and requires a much more complete context than is available in this public forum. BEFORE you say or do anything consult with an experienced local Federal and/or state criminal defense attorney in your jurisdiction who will listen to you and your concerns.
Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.What determines Avvo Rating?Experience & background
Years licensed, work experience, educationLegal community recognition
Peer endorsements, associations, awardsLegal thought leadership
Publications, speaking engagementsDiscipline