A little over a month ago there were some DVD's stolen from work, I have been the most contacted staff by the police, they have shown up at my house unannounced and even recorded me on a tape recorder in my own home without my permission, I was being very cooperative and answering all there questions without argument, now they want me to take a polygraph to "rule me out as a suspect". I have a BIG problem with that. I have always stood against them being that they are highly inaccurate and very tricky little machines, I feel I am being cornered in this investigation, I am innocent and I know I am innocent, I told them to feel free to search my home and they have refused stating that I probably already gave them away or sold them to a pawn shop, then I told them to fingerprint the ones that did return and they refused to do that stating that because I work there my fingerprints have a reason to be on everything in my workplace, then i said but don't you think that If i took them my fingerprints would be EVERYWHERE on them and they had nothing to say to that.  As far as a I know they have not followed up on the pawn shops either, all the pawn shops in this town and around me for that matter require your state ID to sell or pawn, so why don't they look there, now they want me to set up a polygraph and so i have been researching them more and quite frankly I am very frightened by there inaccuracy and other stories I have read on here, I know I have the right to refuse and believe me I AM GOING TO REFUSE, but what I am afraid of is, can I be fired from work for not taking the polygraph? Is it covered under the Employee Polygraph Protection Act when law enforcement is involved?

I ditto what Mr. Cullen said. If they had any evidence on you, you would have already been charged. They are on a fishing expidition and throwing you a dead worm as bate. If you are fired because you refused the poly, you have one hell of a lawsuit against them. Hang tough.

UPDATE:
I told the police that I was not going to participate in a polygraph and he was very pissed and asked me why, I told him that the test is not scientifically valid and that I know its used as an interrogation tool and that I was not willing to put myself out there like that, he then said "well if you have nothing to hide and you are innocent then I don't see why you wouldn't want to rule yourself out as a suspect or rule you in for that matter" "well I guess its your choice I will just let the prosecutor decide what to do".  He has now threatened me with a prosecutor! WTF can they convict on circumstantial evidence alone? The circumstantial evidence is that I worked the night before some of the DVD's were found, can he do that?

I wouldn't think that the fact you worked the night before was even circumstantial evidence. Tell them to charge you on hard evidence or get the f out of your face. REALLY. If they charge you then you have the right to an appointed attorney because you can't afford one. Remember DON'T talk to anyone of them without an attorney present. And if the attorney suggest you take a poly, tell him/her to get f-d and request another on the grounds of ineffective legal counsel.

Based on my experience, my advice to you licorice17 is to start talking to an attorney now.  I have been officially charged for "home invasion - second degree", which is a felony, based off of hearsay.  There is absolutely no actual physical evidence that I was there.  The police report even says the officer tried to get fingerprints and was unsuccessful.  I've been charged based off of someone saying they saw me there, which I was not.  I even have evidence showing that I wasn't anywhere near their place at the time of this supposed break-in.  It was more than two months from the time that this supposedly happened and me getting arraigned.  I was never brought to the police station for questioning or physically arrested (although I was told that getting arraigned is the same as being arrested).   

Hopefully you won't actually need this attorney, but I'd have one lined up just in case you do.  Whatever you do, don't take that polygraph.  I took one a couple of weeks ago in an effort to avoid a trial...and failed.  I was completely honest throughout the whole procedure.

I have a question. I had an item stolen, but it is not so valuable. I have a suspect. A family member was a witness after the crime. I also felt suspicious because the person that did it was surrounding the place and when i asked her questions she bluched and was speechless. Can this be her? when i got details of her the hair color, weight range, and clothes matched. 

so what can i do?