Police blotter

A police blotter is a log or published summary of law-enforcement activity. Depending on the agency, it may list calls, reports, arrests, or selected noteworthy events. The label does not guarantee a complete account of everything the agency handled, and an entry may reflect preliminary information.

What a blotter is designed to show

Blotters make activity easier to scan than full reports. An entry may identify the date, general location, event category, brief account, and a case or call number. Some agencies publish a routine chronological list; others select incidents for short narrative updates.

Seattle's public-records guide describes its blotter's Significant Incident Reports as preliminary write-ups. The blotter itself explains which incidents qualify for that collection and notes that some sensitive events may be omitted to avoid identifying victims. These are specific Seattle publication practices, not a national definition of what every blotter must contain. Seattle records guide; Significant Incident Reports.

That editorial selection matters. A blotter can be useful for understanding an event that attracted public attention while being unsuitable for calculating how frequently all kinds of events occurred. Its purpose and coverage should guide how much weight a reader gives an apparent pattern.

Example

Hypothetical example: A department's weekly blotter contains six short entries: a road closure, two reported thefts, a missing-person search, a collision, and an arrest following an investigation. The department handled many other requests that week but selected these events for publication.

The six entries are six published summaries. They are not necessarily six unique crimes, six calls, or all of the department's activity. The road closure may not concern a crime. The arrest may relate to a theft reported in an earlier week. A single search may have involved numerous calls and responders.

If the arrest entry is later updated, the revision adds information about the same event. Treating the update as a new crime would create another counting error.

Common confusion

A blotter is not necessarily the incident-report database. A full report may contain statements, observations, attachments, and later supplements that a short public item leaves out.

A blotter is not necessarily a crime-statistics release. Statistics use defined counting and inclusion rules. A selection of stories cannot establish a crime rate merely because the stories are official agency publications.

An arrest entry is not a conviction. A summary can report an arrest or an allegation while the court process remains unresolved. Preserve those distinctions when describing the entry in your own words.

Reading an entry carefully

Look at both the event date and publication date. An item posted today may describe an older event or a later investigative development. The location may also be generalized rather than an exact address.

Follow any linked update or report reference before treating an early account as final. Pay attention to attribution within the text: “a caller reported,” “officers observed,” and “investigators determined” describe different sources of information.

Finally, check what the agency says it excludes. A missing entry cannot establish that an event did not happen or was not reported. For broader questions about activity volume, use a documented activity dataset; for details about a particular event, identify the underlying report and its available updates. The blotter can help locate those records without replacing them.

Related terms

• Incident report
• Activity log
• Call log
• Public record

Sources

• City of Seattle — Commonly Requested Records, Significant Incident Reports description. Identifies blotter write-ups as preliminary and distinguishes available record types.
• Seattle Police Department — Significant Incident Reports, checked November 2, 2026. Explains selection and sensitive-event exclusions.