I sent an id theft affidavit to Equifax to block XXXX items that were opened in my name by someone else. They sent back a notice that they would not block the item without a police report. This is a violation of my rights under the Fair Credit Reporting Act. When this act was amended in 2004, the credit bureau representatives who came to train on the differences clearly indicated that a police report was NOT mandatory. Indeed, they provide copies of an ID Theft Affidavit ( attached ) that could be used to identify the item. 
Section 605B clearly indicates that a copy of an identity theft report would be required but not that it must be a police report:605B. Block of information resulting from identity theft [ 15 U.S.C. 1681c-2 ] ( a ) Block. Except as otherwise provided in this section, a consumer reporting agency shall block the reporting of any information in the file of a consumer that the consumer identifies as information that resulted from an alleged identity theft, not later than 4 business days after the date of receipt by such agency of- ( 1 ) appropriate proof of the identity of the consumer ; ( 2 ) a copy of an identity theft report ; ( 3 ) the identification of such information by the consumer ; and ( 4 ) a statement by the consumer that the information is not information relating to any transaction by the consumer. 
But like the credit bureaus have done with sending letters extending a mandatory 30 day time frame for investigating disputes ... changing the 7 year time frame for reporting Chapter XXXX bankruptcies after 40 years ... .and not allowing consumers to have their disputes removed ( who else but consumers would know they are no longer disputing ), the bureaus have simply changed the rules without changing the laws.