At last week’s ILTACON in Washington, D.C., Beth Patterson, Chief Legal & Technology Services Officer for Allens in Sydney asked a panel why e-discovery service providers couldn’t standardize hash values so as to support identification and deduplication across products and collections. If they did, you could use work from one matter in another. If an e-mail is privileged in one case, there’s a good chance it’s privileged in another; so, wouldn’t it be splendid to be able to flag its counterparts to insure it doesn’t slip through without review?
Beth asked a great question, and one regrettably characterized by the panel as “a big technical challenge.”
One panelist got off on the right foot: He said, “I’ve created artificial hashes in the past where what I had to do was aggregate and normalize metadata across different data sets to create a custom fingerprint to do that.” But, he added, “that’s probably not defensible, and it’s also really cumbersome.”
Pressed by Beth, the panel pushed back. “It’s because artificial hashes are kind of complicated,” one panelist offered, and not “a trivial technical problem.” The panel questioned whether MD5 hashes were the appropriate standard or whether SHA-1 would be required, positing that cross-matter deduplication is “something that requires significant buy-in across a broad spectrum of people.” Beth’s request was ultimately dismissed as “not an easy challenge” and one that would be confounded by “people, process and technology” and “the MD5 hash stuff.”
ILTACON is the rare venue where reasonably well-adjusted and -socialized people engage in lively discussions of such things. It’s not just that ILTA folks understand the technology issues (“GEEKS!”), we’re passionate about them (“NERDS!”) and debate them respectfully as peers (“WUSSIES!”).
Beth’s idea deserved more credit than it got. It really is a trivial technical problem, and one that could be resolved without much programming or politics. Continue reading



I am fortunate to teach electronic discovery and digital evidence in many venues. There’s the semester-long,
It’s said that the difference between men and boys is the price of their toys. True enough. A benefit of adulthood is that, if you’re lucky, you can splurge on stuff you dreamed of as a child. For me, a boyish passion was remote sensing and control. When you’re small and powerless, you feel bigger and empowered to monitor and control things from afar, even if “afar” is just a few feet away. So, before I began fooling with phones and multi frequency switching systems as an adolescent, I was a grade schooler stringing, first real string, then wires and finally transmitters and receivers to turn things on and off and monitor my little world.
I haven’t posted in ages per the Mr. Ed Rule. For those too young to remember the talking horse of early-60s TV, the theme song says, “Mr. Ed will never speak unless he’s got something to say.” Sorry, Wilbur. I just didn’t have anything to say, and didn’t wish to waste your time. But, now I’ve got something worth writing about, and a gift to share.


