Is "Truth as an absolute defence" go both ways? And if so, what can I do?

Hi, my name is Sabrina and I was fired from my job of 18 months of service on hearsay for a theft I didn't commit, and also had money taken out of my final check to pay back the money. The owner negligently took the word of another employee about the theft without even checking to see if it were true. When I found out they took the money I told them it was illegal but the owner said"so, tell the labor board." So I Did. But I need a lawyer. Now, not only can I prove my innocence, but I can also prove the girl that accused me is know who actually took the money. Since I was fired I have filed for unemployment which took me three months to receive and the company is still trying to appeal it. The last hearing, they went as far as having the girl that was the victim of theft,take care of the procedure to talk to the judge. Now with a further investigation on my own part, I found out that she had lied about the time of the theft and the other people present so as to cover the fact that she broke the company rules by allowing people to be there after work hours. And here she is representing the company in their appeal and when asked for the reason of my termination she claimed it was because of my attendance. As I mentioned I was fired for theft. On the very first hearing, they were claiming that he quit rather than being fired. So this company is very scandalous and will try anything to get what they want. And as I mentioned, they took out money from my final checked in the amount that was stolen, and I know that's against the law. Can you please tell me if you can help me or if you know a good lawyer that can. Does truth as an absolute defense also work both ways?