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Failure to provide medication to inmates or provide proper medical care or nutrition are all violation of your son's Eighth Amendment rights against cruel and unusual punishment and grounds for a civil rights
suit against the jail for this torturing conduct against him.
At this point, based on the conduct you describe and the denial of care he is receiving, it appears he has a case to file against the jail and you need to contact a civil rights attorney in IA to present the evidence to so that they can file suit against the jail and get a court ordered injunction to prevent further conduct like this towards your son and any other inmates.
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