Evidence by BigBlueYonder
Forensic evidence research

Upload the documents.
Ask Evidence.

BigBlueYonder helps professionals find, understand and verify what the evidence actually shows across hundreds of documents, in minutes, not weeks.

No credit card required
Every answer grounded in your documents. Every conclusion traceable to source.
“The difference between an assertion and the evidence to support it.”
Built around the matter

Your entire matter.
One intelligence.

From planning inquiries to litigation, investigations and due diligence, BigBlueYonder builds a deep understanding of your documents so you can find what matters faster.

Process mixed document sets
Understand context across the whole corpus
Answer complex, multi-document questions
Show exact sources with page references
Identify timelines, key events, contradictions and gaps
Try Evidence free
No credit card required

Chelmsford Local Plan

Ask a question about your documents…
AllDocumentsFindingsTimeline
Evidence on access road design12 sources
Flood risk assessment contradicts claim8 sources
Timeline of key planning submissions15 sources
Ecological survey methodology6 sources
How it works

A simpler way to do complex research.

Upload. Ask. Verify. Every answer is grounded in your documents.

1

Upload

Add PDFs, scans, spreadsheets, images and more.

2

Prepare

We prepare your documents for research, including OCR where needed.

3

Ask

Ask questions in plain English and receive clear, sourced answers.

4

Verify

Follow the sources, check the evidence, and see contradictions, qualifications and gaps.

Try Evidence free
Public case study

Chelmsford Local Plan

A real planning corpus. Real questions. Real answers.

More than 52,000 pages across hundreds of documents. Reports, appendices, maps, technical assessments and competing claims spread across a complex planning record.

Evidence brings it together. It follows the connections between documents, tests claims against the underlying sources and turns a sprawling corpus into evidence you can actually interrogate.

More than 52,000 pages across hundreds of documents
Planning, transport, flood risk, ecology and infrastructure
Conflicting evidence and competing claims
Reports, appendices, maps and technical evidence
Conflicting evidence and competing claims
Answers linked back to the exact sources
Read the case study
“Instead of searching for documents, we can ask the evidence and see what it really shows.”
Security & your data

Your documents stay yours.

Security, privacy and confidentiality are part of the product design, not an afterthought.

Secure by design

Your documents are protected in transit and at rest.

Your data, your control

You decide what to upload and can remove it.

No training on your data

Customer documents are not used to train our models.

Built for professionals

Designed for sensitive, real-world matters.

Get started

Try Evidence free.

See what the evidence reveals.

No credit card required
Upload your own documents
Research your own evidence with cited answers
Try Evidence free
Drag and drop your documents here
PDF · Word · Excel · Images