How the talker goes over his experiences with the technology they had in the early 2000’s compared to now says a lot. A hard drive of 500 Gigs would take hours upon hours to collect its data. Nowadays Terabytes of data takes just the same amount of time. Data forensic investigators jobs are to take the data and pay heavily attention to data that could have been deleted especially. Managing log files were very big and examining them in very precise detail. They are practically the Military police of the cyber world. Commit a crime and they will find you and your data very strategically whether you delete it or not.