The Detective’s DeskDane Pine
Proposed deduction
“There are 16 jars.”
MEDIUM · CASE FILE
The heavy empty crate
Medium · ORCHARD PACKING SHED
Four packers estimated how many identical sample jars were inside a weighed crate. The crate contains only those jars. Also reconstruct the review register: it records who examined which source, independently of whether their later proposed answer is correct. Review slots describe order, not travel or clock times.
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 found the correct jar count?
- The analytical records answer the analytical question; worksheet records establish the review reconstruction. Candidate proposals and supplementary recollections are claims to test.
- There are 2 ordered events. Use each listed person and item once in its column. “A immediately before B” means A is in the row directly above B, with no row between them.
- 4 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
Esme Vale
Proposed deduction
“There are 20 jars.”
Finn Cole
Proposed deduction
“There are 8 jars.”
Cleo Hart
Proposed deduction
“There are 12 jars.”
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.
LINKED RECORD
Jar specification
Each complete sample jar weighs exactly 0.35 kg, including its lid and contents.
This converts the net mass into an item count.
CONTEXT NOTE
Transport tag
The crate is assigned to van 3.
The van assignment does not identify a mass or count.
PRIMARY RECORD
Scale ticket
The loaded crate weighed 5.6 kg. Its empty mass was 1.4 kg.
Subtract the empty crate to obtain the jars’ combined mass.
RECONSTRUCTION RECORD
Review register
This is the same investigation’s document review record. There are 2 ordered events, labelled Review 1, Review 2. Each listed person and item occurs exactly once. These slots describe record order, not times from the analytical problem.
- The event reviewed by Esme Vale occupies slot 2 (Review 2).
Use each column’s choices exactly once. Verified relationships govern the board; proposed answers and later recollections do not override them.
RECONSTRUCTION RECORD
Review cross-check
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 “Scale ticket” occupies slot 2 (Review 2).
Use each column’s choices exactly once. Verified relationships govern the board; proposed answers and later recollections do not override them.
Questions to resolve
Reconstruct the file or item order through the verified register.
When was the primary analytical record reviewed?
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.