Which DBCC commands are you tring to audit?

In most cases you can query the Error log to find out when they are run.

DECLARE @ErrorLog TABLE

(

LogDate DATETIME NOT NULL,

ProcessInfo VARCHAR(75),

LogInfo VARCHAR(MAX)

)

INSERT INTO @Errorlog

EXEC xp_readerrorlog

SELECT *

FROM @Errorlog

WHERE LogInfo LIKE '%DBCC%'