Category Archives: Case Law

Case Law Update: Federal Court Endorses Targeted Search Term Based ESI Collection

By John Patzakis

A recent decision from the Southern District of New York provides that the parties’ have obligations to conduct reasonable searches during discovery, but such searches may be targeted. The court invoked the proportionality concepts within the Federal Rules of Civil Procedure, which govern the production of Electronically Stored Information (“ESI”). In Raine Grp. v. Reign Capital, (S.D.N.Y. Feb. 22, 2022), the plaintiff, “a merchant bank with over 100 employees,” sued defendant “Reign Capital LLC, a two-person real estate development and management firm, for trademark infringement and unfair competition based on Defendant’s” name. After unsuccessful meet and confer efforts to negotiate an ESI protocol, the Court ruled on two key issues in dispute—the scope of the plaintiff’s search and collection obligations and the formulation of certain search terms.

The court, in its written decision, first articulated a party’s general obligations under the Federal Rules of Civil Procedure, noting that Federal Rules of Civil Procedure 26 and 34 “require parties to conduct a reasonable search for documents that are relevant to the claims and defenses.” The court further noted that under Rule 26(a), “Parties have an affirmative obligation to search for documents which they may use to support their claims or defenses.” In meeting these obligations, the court provided that a producing party may utilize search methodologies, specifically mentioning search terms. The court observed that, “in this instance, the producing party must include and utilize search terms it believes are needed to fulfill its obligations under Rule 26 in addition to considering additional search terms requested by the requesting party.” The court—in addressing the concept of reasonable, proportional discovery under the Rules—continued: “In other words, the producing party must search custodians and locations it identifies on its own as sources for relevant information as part of its obligations under Rules 26 and 34.” Importantly, the court noted that “an ESI protocol and search terms work in tandem with the parties’ obligations under the Federal Rules…”

Additionally, the court advised the plaintiff to search not only the relevant custodians’ direct data sources, but also “other sources of data such as shared drives that are not particular to a specific custodian that should be searched as part of Plaintiffs’ obligations under Rule 26. Plaintiff is expected to conduct a reasonable search of such non-custodian sources likely to have relevant information.” The court here is making an important point about shared network drives, and that the parties have a duty to search them for relevant information. We have previously blogged about the importance of network file shares and how to effectively conduct eDiscovery on those critical data sources.

In regard to the formation of search terms, the court, explained that “[s]earch terms, while helpful, must be carefully crafted. Poorly crafted terms may return thousands of irrelevant documents and increase, rather than minimize the burden of locating relevant and responsive ESI. They also can miss documents containing a word that has the same meaning or that is misspelled.” The court further correctly advised that overly broad search terms “are typically not sufficiently targeted to find relevant documents. Modifiers are often needed to hone in on truly relevant documents.” This decision is very important as the court endorses the concept of utilizing highly targeted search terms and other parameters to defensibly collect and preserve potentially relevant ESI.

Additionally, this decision illustrates the necessity of an iterative, in-place search and collection process. None of the cost-saving, targeted collection efforts outlined by the court can be realized without an operational capability to effectuate them. Ideally, the producing party can employ a defensible, targeted, and iterative search and collection process in place, prior to collection to effectuate the proportional discovery process approved by the court in this decision. However, without such a capability, the alternative is an expensive, over-collection effort, where the data is searched post collection. Enabling the search iteration and targeted collection upstream brings dramatic cost savings, risk reduction, and other process efficiencies.

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Filed under Best Practices, Case Law, eDiscovery & Compliance, Enterprise Search, Preservation & Collection

Pre-Collection Keyword Searches: Where Angels May Fear to Tread but Not Attorneys with the Right eDiscovery Software

By John Patzakis

One of the key cases involving the principles of proportionality under Federal Rule of Civil Procedure 26(b)(1), is McMaster v. Kohl’s Dep’t Stores, Inc., (E.D. Mich. July 24, (2020).  McMaster generally supports the application of a process that effectively applies proportionality on an operational basis through an iterative exercise to identify relevant custodians, their data sources, applicable date ranges, file types and agreed upon keywords. Such a targeted, automated and proportional collection process can be applied to collect only the data that is responsive to this specific criteria.

However, the main ESI dispute in McMaster was that the attorneys could not agree on a list of search terms and sought a ruling of the courts to decide on which search terms should be used. As noted by the Magistrate Judge in McMaster, “Here is another case in which the Court is called upon to decide whose competing list of search terms is better suited for the search of large amounts of electronically stored information”, citing United States v. O’Keefe, 537 F. Supp. 2d 14, 23–24 (D.D.C. 2008), which stated: “for lawyers and judges to dare opine that a certain search term or terms would be more likely to produce information than the terms that were used is truly to go where angels fear to tread.”  Judge Whalen stated: “I, for one, have no interest in going where angels fear to tread. Therefore, if the parties cannot agree on appropriately limited search terms, they will share the cost of retaining an expert to assist them. If they still cannot agree, then Plaintiff may renew his motion regarding the search terms and will provide the Court with an expert report substantiating his position.”

The parties had been engaged in a Rule 26(f) exercise, which requires the parties’ counsel to “meet and confer” in advance of the pre-trial scheduling conference on key discovery matters, including the preservation, disclosure and exchange of potentially relevant electronically stored information (ESI). A very good authority on the Rule 26(f) eDiscovery conference is the “Suggested Protocol for Discovery of Electronically Stored Information,” provided by then Magistrate Judge Paul W. Grimm and his joint bar-court committee. Under Section 8 of the Model Protocol, the topics to be discussed at the Rule 26(f) conference include: “Search methodologies for retrieving or reviewing ESI such as identification of the systems to be searched;” “the use of key word searches, with an agreement on the words or terms to be searched;” “limitations on the time frame of ESI to be searched;” and “limitations on the fields or document types to be searched.”

Kelly Twigger, one of the best and brightest eDiscovery attorneys in the field in my opinion, commented in a recent webinar that eDiscovery collection capabilities that enable an iterative search and collection process in place would allow her to make more much informed decisions on keyword strategies. Twigger noted that software that provides keyword hits and other analytics on custodian laptops, fileservers and other network and cloud sources prior to collection, would enable her “to be able to define and agree upon the right search terms” with the requesting party. Twigger pointed out that while attorneys and judges rightfully avoid “where angels fear to tread” — agreeing on keywords without any visibility into the data — that concern can be alleviated when the right processes and technology are used.  

And such technology is important, because optimizing the process of developing keyword searches is no easy task. The typical approach of blindly brainstorming a list of terms that may be relevant and running the search on a dataset to be reviewed results in a wide range of inefficiencies. Negotiations over proper usage of search terms may become onerous and contentious. Judges are often tasked with making determinations regarding the aptness of the methodology, and, as we see in McMaster, are very reluctant to do so. Thus, the use of outside expertise and leveraging indexing in place technology is beneficial in building an effective and comprehensive pre-collection search term strategy and enabling you to tread where angels fear to.

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Filed under Best Practices, Case Law, eDiscovery, Enterprise eDiscovery, ESI, law firm, Preservation & Collection

Relativity and X1 Publish Joint Legal Whitepaper on ESI Collection Best Practices

By John Patzakis

Relativity and X1 have published a joint legal whitepaper on the topic of full-disk imaging as a disfavored collection practice in civil litigation, with Relativity eDiscovery attorney David Horrigan as the lead author. The paper delves into all the legal reasons, including detailed analysis of case law, the Federal Rules of Civil Procedure, and the Sedona Principles establishing why forensic collection is not required in civil litigation. The paper primarily focuses on the principles of proportionality in its legal analysis as well as case law issued prior to the 2015 amendment to the Federal Rules of Civil Procedure, which gave greater prominence and clarification of the proportionality rules.


This is an important topic as a key problem in eDiscovery that drives inefficiencies and higher costs is that default collection methods often involve full-disk imaging—a forensic examination of an entire computer—when searching for responsive data. As the whitepaper notes, “it turns out full-disk imaging is not required for most eDiscovery collections. In fact, courts often disfavor the practice.”


A copy of the whitepaper can be found here.

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Filed under Authentication, Best Practices, Case Law, eDiscovery, ESI, law firm, Preservation & Collection, proportionality