How To Build The Best Timeline Presentation For Criminal Cases

Every criminal case is a story about what happened, in what order, and where. But the evidence that tells that story almost never arrives as a story. It arrives as a carrier spreadsheet, a phone extraction, a stack of subpoena returns, and a folder of video clips — each with its own format, its own clock, and its own fragment of the truth. The investigator's job, and later the prosecutor's, is to turn those fragments into one timeline a jury can follow.

One case, a dozen evidence sources

A timeline worth building has to hold everything the case produced, not just the sources that were easy to load. In a typical case that means:

• Call detail records (CDRs) — calls, texts, and data sessions with the towers and sectors that carried them
• Mobile device extractions — messages, photos, app activity, and recorded locations pulled from phones
• GPS and telematics — ankle monitors, vehicle infotainment, fleet trackers, and fitness apps
• ALPR hits — license plate readers timestamping a vehicle at a fixed point
• Surveillance and body-worn video — cameras that saw something, each on its own clock
• Subpoena returns — financial transactions, rideshare trips, deliveries, and platform records
• CAD/RMS and reports — dispatch logs, incident reports, and witness statements

Each source is persuasive on its own. Together, they either corroborate each other or expose the gaps — but only if they can actually be compared.

A list of events is not a timeline

The instinct is to put everything in a spreadsheet and sort by timestamp. That produces a chronology — and a chronology answers only one question: what came first?

The questions that decide cases are relational. Was the phone near the scene when the camera caught the vehicle? Could the suspect have covered that distance in eleven minutes? Do the ALPR hit and the tower sector describe the same trip, or two different ones? A sorted list strips out exactly the relationships those questions depend on, and leaves the jury to reconstruct them in their heads.

Tie events together in time and space

Almost every event in a criminal case happened somewhere: a tower sector, a camera's field of view, a plate reader on a known corner, a geotagged photo, a transaction at a branch address. The best timeline treats location as a first-class part of every event, so the case can be read two ways at once — scrub through time and watch the story move across the map, or point at a place and see everything that happened there.

That pairing is what turns separate exhibits into corroboration. A tower ping alone is an approximation; a tower ping, an ALPR hit two blocks away, and a purchase across the street — inside the same ten minutes — is a pattern that's hard to argue with.

What a courtroom-ready timeline looks like

By the time a case reaches a courtroom, the timeline has to survive both cross-examination and a jury's attention span. In practice that means:

1. One normalized clock — every event converted to a single, documented time zone
2. Location on every event that has one — mapped, not mentioned in a footnote
3. Sources preserved — each event traceable back to the record it came from
4. Playback, not paperwork — the story presented as movement through time and space, not as forty separate exhibits

Building this by hand — normalizing clocks, geocoding records, and cross-referencing sources across formats — is weeks of work per case. That's the work Lumyx automates: import the evidence in its native formats, and get one timeline where every source lives together in time and space.