UK here so never used them or heard mention good or bad ... but ...
And it's strange to me that they offer this class when their website doesn't even mention forensics as a service they offer.
yeh can't seem to see forensic training via menu, but i went in via google "DTI Data Recovery forensics"
found this
http://www.dtidata.com/forensic/ titled forensic training but only mentions what they do, not what they teach.
Their main training page has the training schedule laid out with scant mention of anything forensic.
Maybe worth a direct call?
K