AARP, the National Association of Consumer Advocates, and the National Consumer Law Center have called for the Appellate Court of Illinois to protect the state's residents from debt buyers seeking judgments based on false affidavits and unreliable data. The case is Unifund CCR Partners v. Shah, on appeal from the Cook County Municipal Court. The plaintiff sued Shah in an attempt to collect on a debt he allegedly owed to Citibank, but the court determined that Unifund could demonstrate a legal right to collect the debt under Illinois law and dismissed the case. Unifund filed an affidavit claiming that it does have that right, explaining that Citibank sold the debt that was eventually sold to Unifund. In a friend of the court brief, AARP asked the appeals court not to allow Unifund to use an affidavit, arguing that it is an unreliable document. While typically acceptable to the court because it states facts based on personal knowledge that are sworn to under oath, the debt collection industry has been exposed for pushing through hundreds of affidavits daily -- a pace that would make it impossible to verify the information in each one. Illinois consumers have complained to state and federal agencies about abusive debt collection more than about any other consumer problem. Collection abuses can cause emotional distress, induce people to pay money they do not owe, and ruin credit.