The authentication foundation collapses.
The GPS data shows the truck's location every thirty seconds for six hours. The electronic logging device recorded speed, engine hours, and brake applications. The telematics system captured steering inputs and collision forces. Three different machines generated three different records of the same accident.
None of it comes in.
The court excludes all machine-generated evidence. Insufficient foundation under FRE 901(b)(9). No testimony about how the systems work, how they're maintained, or whether they produce accurate results. The data exists. The foundation doesn't.
This authentication gap is exactly what proposed Federal Rule of Evidence 707 aims to fix.
The Current Authentication Problem
Machine-generated evidence faces a foundation paradox under current rules. FRE 901(b)(9) requires proof that "a process or system produces an accurate result." But most machine-generated records lack a human witness who can testify about the process.
A GPS unit logs coordinates automatically. No human watches it work. The blockchain protocol anchors hashes according to predetermined rules. No operator oversees each transaction. These systems generate evidence continuously, but they generate authentication headaches for practitioners.
The result? Critical evidence gets excluded not because it's unreliable, but because no one can explain how it was created.
What FRE 707 Changes
The proposed rule creates a certification pathway for machine-generated evidence. Instead of live testimony, a qualified person can submit a written certification establishing:
- How the machine or process operates
- What measures ensure accuracy and reliability
- When the system was installed, maintained, or updated
- Whether any malfunctions occurred during the relevant period
The certification must be signed under penalty of perjury and served on all parties at least 14 days before trial. The opposing party can object within 7 days and demand live testimony.
Timeline and Current Status
FRE 707 is currently under Supreme Court review. If approved, it could take effect as early as December 2026 or December 2027. The rule has already passed through the Advisory Committee and Judicial Conference approval process.
The Supreme Court's decision will determine whether practitioners get this new tool for admitting machine-generated evidence.
Practical Impact for Evidence Authentication
Consider how FRE 707 would change the GPS evidence scenario. Instead of finding someone who understands satellite positioning systems, the practitioner submits a certification from the device manufacturer or fleet management company. The certification explains:
- How the GPS unit calculates and records coordinates
- What error-checking protocols prevent false readings
- When the device was last calibrated or updated
- Whether any system alerts flagged potential malfunctions
The certification goes in. The evidence comes in. The foundation is established without live testimony.
Blockchain Evidence Under FRE 707
Blockchain-anchored evidence particularly benefits from the certification approach. Current authentication often requires expert testimony about distributed ledgers, cryptographic hashing, and consensus mechanisms. Technical concepts that consume court time and trial budgets.
FRE 707 certification could streamline this process. A blockchain timestamping service could provide written certification covering:
- How the system generates and verifies SHA-256 hashes
- What protocols ensure timestamp accuracy
- When blocks are confirmed and made immutable
- Whether any network disruptions affected the anchoring process
This certification pathway makes blockchain evidence more accessible for routine insurance and legal matters where expert testimony costs exceed case value.
Strategic Considerations
The 14-day service requirement demands advance planning. Practitioners can't wait until trial to decide on machine-generated evidence. Discovery strategies must account for certification deadlines.
The opposing party's 7-day objection window creates tactical choices. Object and force live testimony? Accept the certification and challenge reliability through cross-examination of other witnesses? The decision affects both trial preparation and courtroom strategy.
Defense practitioners should note that successful objections don't automatically exclude evidence. They simply revert authentication to current FRE 901(b)(9) requirements. If live testimony is available, the evidence can still come in.
Preparing for FRE 707
Whether the rule takes effect in December 2026 or 2027, preparation should start now. Key steps:
- Identify routine machine-generated evidence in your practice
- Establish relationships with vendors who can provide certifications
- Draft template certification requests for common evidence types
- Revise discovery protocols to account for certification deadlines
- Train staff on the new procedural requirements
The rule won't eliminate all authentication challenges. Complex systems or disputed reliability will still require expert testimony. But for routine machine-generated evidence, FRE 707 promises a more efficient path to admissibility.
The authentication foundation matters. When critical evidence gets excluded on procedural grounds, justice suffers. FRE 707 offers practitioners a tool to build stronger foundations with less time and expense.
That assumes the Supreme Court approves the rule. The decision comes soon.
