"[D]uo"? What is that? In any event, there is no cause of action against anyone for failure to read Miranda Rights.
In fact, there is no requirement that the police read them to you, ever. There are consequences if they do not, and during the criminal case the prosecution attempts to use something you said against you, which is why they are read before questioning after you have been arrested.
"They didn't read me my rights" is right up there with "the handcuffs were too tight" as the first words out of a defendant's mouth when first consulting an attorney.
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The police do not have to read you your rights unless they want to interrogate you after you are arrested. If they have arrested you and then they interrogate you without reading you your rights, then they can't use your statements against you.
What Miranda rights cover or any statements made that were the result of being in custody and interrogated. Is your case over?