The Detective’s DeskKira Lowe
Volunteer
“The day before the marked day is Monday.”
EASY · CASE FILE
The calendar square
Easy · MAPLE COMMUNITY CENTRE
A notice was removed from the community calendar. Three volunteers describe dates relative to the same marked day. You do not need to know any real calendar dates; use the weekday sequence printed in the record.
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
Omar Vale
Volunteer
“Two days after the marked day is Thursday.”
Jon Pike
Volunteer
“The day after the marked day is Friday.”
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.
DESK CALENDAR
The marked day is Tuesday
The marked day is Tuesday. Each next calendar day advances one place in the printed weekday cycle, returning to Monday after Sunday.
This is a verified source record for this case. Compare its stated facts with the exact question.
DESK RECORD
The meeting list
The centre offers drawing, music and gardening sessions. No days are shown on this list.
The centre offers drawing, music and gardening sessions. No days are shown on this list.
RECOVERED ITEM
A red drawing pin
A loose red pin was found beneath the calendar.
A loose red pin was found beneath the calendar.
Questions to resolve
Audit all three statements against the verified record.
- Kira Lowe — “The day before the marked day is Monday.”
- Omar Vale — “Two days after the marked day is Thursday.”
- Jon Pike — “The day after the marked day is Friday.”
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.