The Detective’s DeskBria Hart
Visitor
“I opened the workshop door with my green badge.”
EASY · CASE FILE
The borrowed access badge
Easy · GLASSHOUSE RESEARCH CENTRE
Three visitors describe opening doors with the same kind of green badge. Every claimed opening used that badge alone under normal operation. The verified permission card records all allowed areas.
Read the case file below, or open the interactive desk to examine records, keep notes and submit your reasoning. These are the case materials, without the solution.
Your assignment
Inspect, test and record the finding. What does the verified record establish?
- The source records are verified and their stated conditions apply to every account.
- Find the account contradicted by a record. A contradiction alone does not establish wrongdoing.
People and accounts
Zia Bell
Visitor
“I opened the laboratory door using only my green badge.”
Adil Moss
Visitor
“I opened the office door with my green badge.”
Case records
Read each record on its own terms. A claim made by a person is different from a fact established by an independent record.
PHOTOGRAPH
The visitor lanyards
All three visitors wore the same green lanyard design.
All three visitors wore the same green lanyard design.
DESK RECORD
The research poster
A poster describes work performed inside the laboratory.
A poster describes work performed inside the laboratory.
GREEN-BADGE PERMISSIONS
Two allowed areas
A green badge can open only the office and workshop doors. It cannot open the laboratory door. No other person opened a door, and no overrides, shared codes or faults occurred.
This is a verified source record for this case. Compare its stated facts with the exact question.
Questions to resolve
Whose badge-only entry could not happen?
Use the interactive case desk to select your finding and cite the records that support it. The answer is checked there, and your progress stays in your browser.
Build your finding
Compare the records with each account. Work out what the evidence establishes, then separate that finding from anything it does not prove.