Hard Deduction #4
00:00
The Case
A confidential research document was secretly modified at 11:47 PM. The edit came from Workstation C in the east wing. Four researchers had building access that night: Gabrielle, Victor, Simone, and Raj. Case file HARD-004.
Who modified the document?
Evidence (7)
#1The edit was made from Workstation C in the east wing at exactly 11:47 PM.
#2Door access logs: Gabrielle badged into the east wing at 11:30 PM and left at 12:05 AM.
#3Victor's key card shows he accessed only the west-wing lab after 10 PM.
#4Simone's exit was logged at 10:15 PM. She did not re-enter the building.
#5Raj was in his north-wing office on a phone call from 11:30 PM to 12:15 AM. Phone records confirm the call.
#6The east wing requires a separate badge access. No tailgating is possible — the door has a mantrap.
#7Gabrielle's research area is in the west wing. She had no stated reason to be in the east wing that night.