Let me help you. The DOJ asked for a 30 day delay in sentencing so that FINRA could review the TRADING RECORDS. But no that's not all. The DOJ then came back later and asked for another delay of 30 days. Seems there was alot of work to be done on those trading records.
The DOJ's purpose in asking for an extension was to be granted enough time to inform shareholders who'd been ripped off, and to solicit impact statements that could be used at the sentencing hearing.