Rethinking Forensic Data Collection: Why Collecting Once Matters
Why Forensic Data Collection Strategy Matters in eDiscovery
In litigation and investigations, forensic data collection forms the foundation of the entire discovery process. Decisions made at the collection stage determine whether evidence remains complete, defensible, and usable throughout review and production.
When collections are narrowly scoped too early, legal teams may need to repeat forensic work later. This increases costs, interrupts custodians, and can introduce risk to case timelines. A more comprehensive collection strategy helps preserve flexibility as the matter evolves.
The Temptation to “Just Grab What We Need”
When a legal matter begins, it is natural to want to keep things small. Narrow the scope. Apply filters. Collect only what seems relevant right now.
That instinct makes sense. However, in forensic collections, it often creates more work later than less.
We hear this often:
- Let’s only pull emails with these keywords
- We will limit it to this folder for now
- If we need more later, we can always collect again
On paper, that sounds efficient. In reality, it assumes the case will not change. Cases almost always do.
Targeted scoping depends on people making perfect decisions early on, but early case facts are rarely complete. Even careful teams can overlook key sources, especially messaging threads, contact lists, or additional custodians that only become relevant later.
This is not anyone’s fault. It is simply how legal matters develop.
What Usually Happens Next
Cases evolve. New facts emerge. Different questions need answers.
When that happens, filtered collections can create new problems.
- The same account needs to be collected again
- The custodian is interrupted again
- Forensic work must be repeated
- Costs increase
What felt efficient at the beginning can quickly become more complicated and expensive over time.
A Simpler and More Practical Approach
Instead of narrowly collecting only what appears relevant at the start, a more practical approach is to collect comprehensively once and apply filtering later.
Recommended approach:
- Collect everything once, or at least all data within the relevant date range
- Apply search terms and filters later during processing and review
Why this matters
Saves time and coordination
Teams avoid returning to custodians more than once. It reduces repeated scheduling, device handoffs, credentials or MFA steps, and chain of custody procedures.
Protects attorney client relationships
Custodians are not frustrated by repeated requests. Clients do not feel that they are being asked to redo work.
Reduces court and timeline risk
Courts rarely adjust deadlines because a collection had to be repeated. Recollections often lead to rushed reviews or increased deadline pressure.
Collecting once at the beginning keeps the process flexible, efficient, and defensible while reducing stress, coordination, and risk.
Why This Works Better
Once data has been collected and processed:
- You do not need to go back to the custodian
- New searches can be run at any time
- Scope can expand without requiring new collections
- Costs remain more predictable
The work stays inside the system rather than requiring repeated forensic collections.
What This Looks Like in Practice
Here is a real example.
Counsel and a client worked through a contact list to identify messages for collection.
Warp9 advised that a targeted collection might require follow up if the scope later changed. The client preferred a narrower approach, and Warp9 proceeded as requested.
The attorney sent screenshots of selected messages. Warp9 converted those screenshots into a spreadsheet to organize the data.
Over the next three to four months, the spreadsheet circulated for confirmation and scheduling delays occurred.
After collection and reviewing, the counsel realized that key contacts were missing from the original screenshots.
The result was a second collection, which added additional time, cost, and coordination. Targeted collections can work. However, when early scoping misses important sources, the need for recollection multiplies over time, cost, and disruption.
The Real Benefit
The biggest savings rarely appear at the beginning of a matter. They come from:
- Having a clear collection strategy from the start
- Avoiding repeat collections
- Reducing disruption to custodians
- Maintaining flexibility as the case evolves
The Role of a Thoughtful Discovery Partner
A thoughtful discovery partner helps clients think beyond immediate requests. This includes asking how likely the scope may change, how the data might be reused later, and whether early filtering decisions could limit options down the line.
Rather than defaulting to the smallest possible collection, the goal is to design a strategy that balances proportionality, defensibility, and long-term efficiency.
The Takeaway
The biggest risk is not collecting more data upfront. The bigger risk is paying in time, relationships, and cost when you must collect twice.
By collecting comprehensively at the beginning and applying filters during processing and review, legal teams reduce repeat work, control costs, and minimize disruption.
What appears cautious early on often becomes the most efficient and defensible path forward.
Author: Paulo Santos and Marvie Ann Loredo
