Yes. The questions which must be answered affirmatively, assuming your case was dismissed, is was there a basis for your being arrested? Was your detention overdone? Did they refuse to provide necessary care to a pregnant mother ? etc. Assuming they had no legitimate basis for detaining you, the next issues are what if any damage did you suffer. Hre issues such as how long you were kept in detention and what proximate damages occurred. The matter seems ripe for a suit for false arrest and denial of civil rights.
These are tricky cases. There is a law that allows a retail store to detain someone suspected of shoplifting. If there is surveillance, I would want to take steps to preserve it as that may be the key to the case. Being merely present when someone else commits a crime is not a crime but I suspect the store will claim that you were acting in concert. Hire a lawyer ASAP and serve a Notice of Claim on the City within 90 days of the incident to preserve your right to sue the City. That said, if there is a case it will likely be against the store. When you say the criminal case was dropped do you mean dismissed or you accepted an ACD?
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Yes, you have an excellent suit. I've successfully settled suits with far less sympathetic plaintiffs. You have one year to sue the store, which is the liable party, not the police since they were acting on the representations of the security personnel.
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