Andersen Get 'Thumbs-Up' on Peer Review
According to the review, Andersen's system of accounting and auditing quality has been deemed to provide reasonable assurance of compliance with professional standards, following the most extensive peer review in the firm's history. The scope of the Peer Review had been expanded in the wake of revelations about events leading to the debacle at Enron.
"In our opinion, the system of quality control for the accounting and auditing practice of Arthur Andersen LLP in effect for the year ended August 31, 2001 has been designed to meet the requirements of the quality control standards for an accounting and auditing practice established by the AICPA, and was complied with in the year then ended to provide the firm with reasonable assurance of complying with professional standards."
Deloitte & Touche, LLP
A copy of the Andersen Peer Review can be downloaded here (in PDF format). 
The integrity of the peer review process was almost immediately criticized by analysts, including Professor Lynn Turner, a former Securities & Exchange Commission chief accountant and current director of the Center for Quality Financial Reporting at Colorado State University.
"If the process was really credible I don't think we'd be having the rash of problems we are having today," said Turner. He cited reporting problems that have cost investors billions such as those at Enron, other Andersen clients such as Waste Management Inc. and Sunbeam Corporation, and other high profile failures after audits by other top firms at Cendant/CUC, Rite Aid and MicroStrategy.
Critics of the peer review process point to the fact that since the process began in 1978 no Big Five accounting firm has ever received a qualified opinion of its accounting procedures from a rival.