HARD · CASE FILE
The Bow in the Closed Case
Hard · An orchestra’s instrument return
A signed bow return and a student’s false lesson alibi point in different directions. Establish what was actually returned and whether a separate private sale explains the missing original.
Investigate this case
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.
The scene
The orchestra case contains a plain-gripped practice bow. The repaired bow’s identifying crescent is documented before the loan. All travel sleeves are detained inside the hall.
People and accounts
Celia Venn
Instrument borrower
What happened from your point of view?
I returned the orchestra’s violin bow to its named case. The return form is signed.
What detail should I check independently?
A return signature records my declaration unless somebody opens the case.
Ruth Flint
Librarian
What happened from your point of view?
I accepted the closed case and signed only the time of receipt.
What detail should I check independently?
The orchestra’s bow has a crescent repair beneath the grip.
Tomas Cole
Student violinist
What happened from your point of view?
I sold a cheap practice bow earlier. I lied about being in a lesson because I did not want the sale questioned.
What detail should I check independently?
My buyer’s full recording shows the practice bow’s plain grip.
Ada Moss
Stage assistant
What happened from your point of view?
I saw Celia move a bow from the orchestra case to a blue travel sleeve before closing it.
What detail should I check independently?
An edge of the crescent repair was visible. My original note does not say I inspected the other bow.
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.
Physical record · Instrument return
The signed return form
Celia signs that she returned the orchestra bow. Ruth signs a separate receiving-time box marked “contents not inspected”. The two signatures do not establish the same fact.
Physical record · Travel-sleeve store
Travel-sleeve recovery
The crescent-repaired bow is recovered from Celia’s detained blue sleeve. The supervised search links it to the sleeve in the packing record.
Physical record · Instrument return
Returned bow examination
The case contains a plain-gripped practice bow with no crescent repair. The orchestra’s repaired original was not returned in it.
Physical record · Practice corridor
Student’s buyer recording
Tomas sells a plain-gripped student bow. The uninterrupted recording identifies him and the sold object throughout the packing interval. It also disproves his claimed lesson.
Physical record · Practice corridor
Borrower’s packing sequence
The continuous corridor record shows Celia moving the crescent-repaired bow into her blue travel sleeve and inserting a plain bow into the orchestra case before closing it.
Physical record · Practice corridor
Ada’s original note
Ada wrote that she saw the repaired bow enter the blue sleeve. She explicitly did not inspect the replacement. The later examination supplies that missing identification.
Physical record · Instrument return
Loan restriction
The orchestra refused Celia’s request to keep the repaired bow for a private recital. Her later instruction to use it at that recital predates the false return.
Questions to resolve
Who retained the orchestra’s repaired bow?
Who is established as a knowing helper in that substitution?
What did Ruth’s signature certify?
What does Tomas’s false lesson account conceal?
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.