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Campus Alert Archive
Michigan

Mason Hall Graffiti campus safety notice

AI-generated · every claim is source-linked
MIactive threattimely warninghigh confidence
Under Investigation

University of Michigan DPSS published a public safety notice on or about 2018-04-01. Full text is preserved from the official news.dpss.umich.edu archive.

Alerts
1
Response
Killed
0
Injured
0
Institution
University of Michigan
Public R1 · MI
All Michigan cases →
~51,000 studentsU-M DPSS / Emergency Alert
Official alert policy
Read when and how Michigan says it will use U-M Emergency Alert: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

1 message in sequence · 1 verified verbatim

Confirmed wording is transcribed character-for-character from a primary source. Use Verify this quote under each message to open that source in a new tab and compare the text yourself.

INITIAL ALERTEmail
Verified verbatim1066 chars
Mason Hall Graffiti Thursday, 12 April 2018, 16:52 The University of Michigan Division of Public Safety and Security has been notified by students and staff about a graffiti message, "School Shooting 4/13," written on a bathroom stall in Mason Hall. We've included an image of the graffiti, which has since been removed from the wall. The safety and security of our community is our highest priority. Out of an abundance of caution, the U-M Police Department is continuing to assess the situation and is conducting a thorough investigation. We have notified local, state and federal law enforcement partners and have increased police presence on campus. We value our partnership with our community and appreciate those who stepped forward to report this information. We all play a role in ensuring community safety. If you see something that shouldn't be there or someone's behavior doesn't seem quite right – say something. If you have any information regarding this incident, please contact DPSS at 734-763-1131 or at dpss-safety-security@umich.edu.
Transcribed from official public safety web archive page body.
Full public notice text recovered for confirmed-verbatim preservation.
Message elements

How the first alert is built

To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

Mason Hall Graffiti Thursday, 12 April 2018, 16:52 The University of Michigan Division of Public Safety and Security has been notified by students and staff about a graffiti message, "School Shooting 4/13," written on a bathroom stall in Mason Hall. We've included an image of the graffiti, which has since been removed from the wall. The safety and security of our community is our highest priority. Out of an abundance of caution, the U-M Police Department is continuing to assess the situation and is conducting a thorough investigation. We have notified local, state and federal law enforcement partners and have increased police presence on campus. We value our partnership with our community and appreciate those who stepped forward to report this information. We all play a role in ensuring community safety. If you see something that shouldn't be there or someone's behavior doesn't seem quite right – say something. If you have any information regarding this incident, please contact DPSS at 734-763-1131 or at dpss-safety-security@umich.edu.

  • Sourcepresent25/25

    Final assessment

    Present: Source coded in residual public safety notice.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. present: Names DPSS, UMPD, AAPD, or Brown Public Safety as issuer.
    2. present: Campus public safety agency attribution is present.
    3. present: Official safety unit is named as the source.
    4. present: Branded emergency or crime-alert framing identifies sender.
    5. present: Source agency wording is explicit in the notice.
    6. present: Names DPSS, UMPD, AAPD, or Brown Public Safety as issuer.
    7. present: Campus public safety agency attribution is present.
    8. present: Official safety unit is named as the source.
    9. present: Branded emergency or crime-alert framing identifies sender.
    10. present: Source agency wording is explicit in the notice.
    11. present: Names DPSS, UMPD, AAPD, or Brown Public Safety as issuer.
    12. present: Campus public safety agency attribution is present.
    13. present: Official safety unit is named as the source.
    14. present: Branded emergency or crime-alert framing identifies sender.
    15. present: Source agency wording is explicit in the notice.
    16. present: Names DPSS, UMPD, AAPD, or Brown Public Safety as issuer.
    17. present: Campus public safety agency attribution is present.
    18. present: Official safety unit is named as the source.
    19. present: Branded emergency or crime-alert framing identifies sender.
    20. present: Source agency wording is explicit in the notice.
    21. present: Names DPSS, UMPD, AAPD, or Brown Public Safety as issuer.
    22. present: Campus public safety agency attribution is present.
    23. present: Official safety unit is named as the source.
    24. present: Branded emergency or crime-alert framing identifies sender.
    25. present: Source agency wording is explicit in the notice.
  • Hazardpresent25/25

    Final assessment

    Present: Hazard coded in residual public safety notice.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. present: Names a specific offense or emergency hazard.
    2. present: Hazard is a named crime or weather threat.
    3. present: States the incident type under investigation.
    4. present: Describes a concrete safety hazard.
    5. present: Offense or emergency wording makes hazard present.
    6. present: Names a specific offense or emergency hazard.
    7. present: Hazard is a named crime or weather threat.
    8. present: States the incident type under investigation.
    9. present: Describes a concrete safety hazard.
    10. present: Offense or emergency wording makes hazard present.
    11. present: Names a specific offense or emergency hazard.
    12. present: Hazard is a named crime or weather threat.
    13. present: States the incident type under investigation.
    14. present: Describes a concrete safety hazard.
    15. present: Offense or emergency wording makes hazard present.
    16. present: Names a specific offense or emergency hazard.
    17. present: Hazard is a named crime or weather threat.
    18. present: States the incident type under investigation.
    19. present: Describes a concrete safety hazard.
    20. present: Offense or emergency wording makes hazard present.
    21. present: Names a specific offense or emergency hazard.
    22. present: Hazard is a named crime or weather threat.
    23. present: States the incident type under investigation.
    24. present: Describes a concrete safety hazard.
    25. present: Offense or emergency wording makes hazard present.
  • Locationpresent25/25

    Final assessment

    Present: Location coded in residual public safety notice.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. present: A street, building, or campus place is named.
    2. present: Location detail situates the incident.
    3. present: Place identifiers appear in the narrative.
    4. present: Geographic reference supports location.
    5. present: Named place is present.
    6. present: A street, building, or campus place is named.
    7. present: Location detail situates the incident.
    8. present: Place identifiers appear in the narrative.
    9. present: Geographic reference supports location.
    10. present: Named place is present.
    11. present: A street, building, or campus place is named.
    12. present: Location detail situates the incident.
    13. present: Place identifiers appear in the narrative.
    14. present: Geographic reference supports location.
    15. present: Named place is present.
    16. present: A street, building, or campus place is named.
    17. present: Location detail situates the incident.
    18. present: Place identifiers appear in the narrative.
    19. present: Geographic reference supports location.
    20. present: Named place is present.
    21. present: A street, building, or campus place is named.
    22. present: Location detail situates the incident.
    23. present: Place identifiers appear in the narrative.
    24. present: Geographic reference supports location.
    25. present: Named place is present.
  • Guidancepresent25/25

    Final assessment

    Present: Guidance coded in residual public safety notice.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. present: Instructs recipients on protective steps or reporting.
    2. present: Safety tips or directives address the community.
    3. present: Directs readers to call, avoid, or secure.
    4. present: Protective action language is present.
    5. present: Guidance element is met.
    6. present: Instructs recipients on protective steps or reporting.
    7. present: Safety tips or directives address the community.
    8. present: Directs readers to call, avoid, or secure.
    9. present: Protective action language is present.
    10. present: Guidance element is met.
    11. present: Instructs recipients on protective steps or reporting.
    12. present: Safety tips or directives address the community.
    13. present: Directs readers to call, avoid, or secure.
    14. present: Protective action language is present.
    15. present: Guidance element is met.
    16. present: Instructs recipients on protective steps or reporting.
    17. present: Safety tips or directives address the community.
    18. present: Directs readers to call, avoid, or secure.
    19. present: Protective action language is present.
    20. present: Guidance element is met.
    21. present: Instructs recipients on protective steps or reporting.
    22. present: Safety tips or directives address the community.
    23. present: Directs readers to call, avoid, or secure.
    24. present: Protective action language is present.
    25. present: Guidance element is met.
  • Timepresent25/25

    Final assessment

    Present: Time coded in residual public safety notice.

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. present: Gives date, clock time, or time window.
    2. present: Temporal detail anchors the event.
    3. present: When-language appears in the notice.
    4. present: Time element is present.
    5. present: Incident timing is specified.
    6. present: Gives date, clock time, or time window.
    7. present: Temporal detail anchors the event.
    8. present: When-language appears in the notice.
    9. present: Time element is present.
    10. present: Incident timing is specified.
    11. present: Gives date, clock time, or time window.
    12. present: Temporal detail anchors the event.
    13. present: When-language appears in the notice.
    14. present: Time element is present.
    15. present: Incident timing is specified.
    16. present: Gives date, clock time, or time window.
    17. present: Temporal detail anchors the event.
    18. present: When-language appears in the notice.
    19. present: Time element is present.
    20. present: Incident timing is specified.
    21. present: Gives date, clock time, or time window.
    22. present: Temporal detail anchors the event.
    23. present: When-language appears in the notice.
    24. present: Time element is present.
    25. present: Incident timing is specified.
  • Impactabsent0/25

    Final assessment

    Absent: Impact not satisfied in residual public safety notice.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. absent: No concrete impact is stated.
    2. absent: Impact element is not satisfied.
    3. absent: No consequence detail.
    4. absent: No victimization or status impact.
    5. absent: Impact is absent.
    6. absent: No concrete impact is stated.
    7. absent: Impact element is not satisfied.
    8. absent: No consequence detail.
    9. absent: No victimization or status impact.
    10. absent: Impact is absent.
    11. absent: No concrete impact is stated.
    12. absent: Impact element is not satisfied.
    13. absent: No consequence detail.
    14. absent: No victimization or status impact.
    15. absent: Impact is absent.
    16. absent: No concrete impact is stated.
    17. absent: Impact element is not satisfied.
    18. absent: No consequence detail.
    19. absent: No victimization or status impact.
    20. absent: Impact is absent.
    21. absent: No concrete impact is stated.
    22. absent: Impact element is not satisfied.
    23. absent: No consequence detail.
    24. absent: No victimization or status impact.
    25. absent: Impact is absent.

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

Official public safety archive notice from University of Michigan.
Analysis

Key Findings

Official archive page preserves complete public safety notice text.
Outcome
See official notice for investigation or operational status.
Provenance

Sources

Every claim on this page is meant to be checkable. Open the links below (and the Verify this quote control under each confirmed alert) to read the original university, news, or archive page yourself. Hostnames are shown so you can see where you are going; archived copies survive when live pages move or disappear. See also our methodology.

  1. Official
Cite this case

Campus Alert Archive. "University of Michigan: Mason Hall Graffiti campus safety notice." Incident of April 1, 2018. Added July 2026. https://campusalertarchive.com/case/university-of-michigan-mason-hall-graffiti-2018-04-01/

Download case JSON

Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
michiganumichdpssactive-threattimely-warningUnder Investigation
Added July 2026Updated July 2026Via ingestion