Whistle blower retaliation and wrongful term

I recently accepted a promotion to the Bay area, increase in salary and COLA compensation. In an incident that occured in January, I, after speaking with my supervisor, took an investigation to Human Resources for review, as my supervisor stated she was to busy to address it. I was then "counseled" for taking this to Human Resources by my Supervisor. In the time after that, it was quite obvious she had an issue with me. I was just termed for gross misconduct, stating due to a "lie". I never lied. and in previous investigations she herself told me specifically "we dont fire people for lying". I know for a fact that policy and procedure does not support my termination and that this was retalitory. I am looking for an attorney to take this case. Any Opinions or suggestions would be greatly appreciated.