You need to contact a civil rights attorney as soon as possible. Police misconduct, involving the use of handcuffs resulting in injury to the detainee, happen all the time, and you deserve to have your case evaluated. Please do waste any time because the California Government Code requires that claims against public entities--in this case, the city or county employing the police officers who handcuffed you--be filed within six (6) months of the incident.
Ms. Berjis is licensed to practice law in the State of California. The laws of your jurisdiction may differ and thus this answer is for informational and educational purposes only and is not to be considered as legal advice. Since all facts are not addressed in the question, this answer could change depending on other significant and important facts. This answer in no way constitutes an attorney-client relationship.
Your first step is to file notice per the California Tort Claims Act which must be done within 6 months. These forms are available online. Best of luck!
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