The Detective’s DeskInez Shore
Recorded packet handler
“Establish my packet, location and event from the verified custody record.”
HARD · CASE FILE
Exactly two truthful labels
Hard · ALDER LOCKER ROOM
A packet occupies one of four lockers. The audit establishes exactly two true label statements, but a separate inspection is needed to finish the deduction. The archive retained the competing reconstructions in separate packets. Rebuild their custody events, identify the proposal supported by the analytical records, then name that packet’s recorded handler. The packet events form a separate ordered register; do not substitute a calculated clock time for a review-slot label.
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
Who handled the packet containing the supported reconstruction?
- The analytical records answer the analytical question; worksheet records establish the packet custody reconstruction. Candidate proposals and supplementary recollections are claims to test.
- There are 5 ordered events. Use each listed person, location and item once in its column. “A immediately before B” means A is in the row directly above B, with no row between them.
- 6 verified records support the complete submission. Keep the separate context note out of the proof.
- No outside facts or unstated exceptions are required. The complete board and report are assessed together.
People and accounts
Inez Lane
Recorded packet handler
“Establish my packet, location and event from the verified custody record.”
Jules Ash
Recorded packet handler
“Establish my packet, location and event from the verified custody record.”
Vera Pine
Recorded packet handler
“Establish my packet, location and event from the verified custody record.”
Milo West
Recorded packet handler
“Establish my packet, location and event from the verified custody record.”
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.
VERIFIED RECORD C
Empty-locker inspection
Locker C was independently opened and found empty. The packet is in exactly one of A, B, C or D.
Use the verified exclusion after the truth-count test.
CONTEXT NOTE
Packet cover
The packet is brown. No label statement refers to cover colour.
This describes the setting; it does not establish the requested result.
VERIFIED RECORD A
Locker statements
Label 1 says “A or B”. Label 2 says “B or C”. Label 3 says “not D”. Each statement describes the packet’s one actual locker.
Evaluate all three statements for each possible location.
VERIFIED RECORD B
Audit standard
Exactly two of these three label statements are true. A false statement means its complete proposition is false; “or” is inclusive.
Retain only locations satisfying the exact truth count.
RECONSTRUCTION RECORD
Packet proposal index
This is the same investigation’s packet custody record. There are 5 ordered events, labelled Review 1, Review 2, Review 3, Review 4, Review 5. Each listed person, location and item occurs exactly once. These slots describe record order, not times from the analytical problem. Each packet contains the proposed reconstruction shown in the index. Solve the original three analytical records to identify the supported proposal, then trace its packet to its handler. Control packets have no proposal and cannot be the target.
- The event handled by Jules Ash occupies slot 5 (Review 5).
- The event handled by Inez Lane is the same event as the event involving “Packet Amber”.
- The event at Reading desk and the event involving “Packet Elm” are exactly 4 positions apart, with 3 intervening events; this alone gives no direction.
| Packet | Proposed analytical answer |
|---|---|
| Packet Amber | Locker D |
| Packet Birch | Locker B |
| Packet Cedar | Locker A |
| Packet Dune | Locker C |
| Packet Elm | Control packet: no analytical proposal |
Use each column’s choices exactly once. Verified relationships govern the board; proposed answers and later recollections do not override them.
RECONSTRUCTION RECORD
Custody sequence
The relationships below were verified independently. “A immediately before B” means A is in the row directly above B, with no row between them. Keep relationships from all worksheet sources together.
- The event at Intake counter occupies slot 5 (Review 5).
- The event handled by Milo West occurs immediately before the event handled by Inez Shore (consecutive rows, with no event between them).
- The event handled by Inez Lane occurs immediately before the event at Seal station (consecutive rows, with no event between them).
Use each column’s choices exactly once. Verified relationships govern the board; proposed answers and later recollections do not override them.
RECONSTRUCTION RECORD
Cross-check and accounts
The relationships below were verified independently. “A immediately before B” means A is in the row directly above B, with no row between them. Keep relationships from all worksheet sources together.
- The event involving “Packet Cedar” occurs earlier than the event at Review bench, without claiming they are consecutive.
- The event handled by Vera Pine occurs immediately before the event handled by Inez Lane (consecutive rows, with no event between them).
- The event at Dispatch shelf is the same event as the event involving “Packet Dune”.
Use each column’s choices exactly once. Verified relationships govern the board; proposed answers and later recollections do not override them.
Questions to resolve
Which locker contains the packet?
Match every recorded item to its handler or reviewer.
- Packet Cedar
- Packet Amber
- Packet Birch
- Packet Dune
- Packet Elm
At which recorded event was the target packet handled?
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.