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EVIDENCE COLLECTION

PRESERVE · WEB TO COURT-READY · HURIDOCS

Preserve browser extension capturing web evidence
ONE CLICK, COURT-READY · THE PRESERVE EXTENSION

MISSION BRIEFING

ROLELEAD UX / UI
PARTYPM + 3 ENG
TIME1MO ALPHA + 2MO V1
TOOLSFIGMA / DEVTOOLS
STUDIOHURIDOCS 2021-25

Investigators needed web evidence that holds up in court, captured without leaving the case they were building in Uwazi. I designed a browser extension that grabs tamper-proof evidence in one click and syncs it straight in.

STAGE 1

THE CHALLENGE

Screenshots and manual notes carry no cryptographic proof, so they wobble under legal scrutiny. Existing tools were either too technical for investigators or offered no real tamper-proof guarantee.

The capture had to happen inside the browser and pull more than pixels: metadata, timestamps, and source verification, all synced automatically into the investigator's live Uwazi case, within the hard limits of an extension.

Information architecture diagram showing the Preserve capture flow
THE CAPTURE FLOW · ARCHITECTURE

STAGE 2

RESEARCH

We worked with legal experts and investigators to learn what makes digital evidence admissible: chain of custody, verification, and the kinds of online content that actually need preserving.

Full presentation of the V1 flow, design, and MVP
THE PLAN · V1 FLOW, DESIGN, AND MVP

STAGE 3

DESIGN

Simplicity and reliability, in that order. Capture evidence with almost no technical knowledge while keeping full legal integrity, with clear visual feedback that behaves the same across every site and content type.

THE EXTENSION

Preserve extension full flow mockup
THE FULL FLOW · CAPTURE TO CASE
Preserve setup with a generated token between Uwazi and the extension
PAIRING · A TOKEN LINKS THE TWO

STAGE 4

SHIPPED

The alpha proved both the concept and the technical feasibility of tamper-proof capture inside a browser. It went up on the Chrome Web Store, and every capture drops straight into Uwazi where the case already lives.

Chrome Web Store listing for the Preserve extension
LIVE · ON THE CHROME WEB STORE
Preserve integration with Uwazi, capturing evidence and syncing
SYNCED · STRAIGHT INTO UWAZI

BOSS DEFEATED

VALIDATED

1 CLICK TO CAPTURE
0 TAMPERING
COURT READY EVIDENCE
V1 NEXT IN LINE
A Preserve capture as shown inside Uwazi
THE CAPTURE · INSIDE UWAZI

STAGE CLEAR

High-stakes, regulated work asks UX to hold simplicity and technical precision at once. Done right, thoughtful design makes legal-grade requirements feel effortless, and opens new ground for digital evidence in human rights work.