If a case will not close, do not restart it first. Open the cabinet summary, make sure every collected item has produced the result the file asks for, export that result, attach it to the correct message, and read the reply. In Forensics: Crime Scene Detective, the missing clue is often already in the laboratory or inbox rather than hidden at the scene.
This Forensics: Crime Scene Detective walkthrough follows all four Trainings and the current Steam case cabinet through The First Stone. The source refresh on August 7, 2026 found Patch 8, released July 31, at the top of the official update feed. Locations and evidence totals below are search aids, while the summary shown by your installed build is the final authority. Fixed DNA positions, projectile settings, minutiae coordinates, and rating thresholds are excluded because patches have already changed them.
Read three screens before returning to a scene
The cabinet summary answers the first question: did the game register the raw evidence? A phone lying on a desk does not count until its marker and required photograph are accepted and the device is collected. A fingerprint that glows under alternate light still needs the correct scene procedure. A bottle, knife, firearm, or other portable object may add a latent print only after laboratory fuming, so its later print will not appear as a normal wall or furniture lift.
The laboratory list answers the second question: has each raw item become something the case can use? Damaged phones need chip removal before digital analysis. Biological samples and references need profiles before comparison. Portable objects need fuming before their latent prints join the unknown set. A recovered projectile needs a reference round fired from the relevant weapon. Finish the prerequisite first, then export or pick up the report; leaving the instrument screen is not always the final transfer.
The inbox answers the third question: has the assignment changed? Attach the requested reports, send the message, open every response, and inspect its attachments. Several cases provide a new reference, firearm, password, device, or return visit only after the first valid submission. If the summary is full and the lab work is complete, unread mail is more likely than an invisible extra clue.
Finish the four Trainings without carrying a bad habit forward
Each Training isolates one laboratory discipline. Treat the finish state as proof that the complete method works, not merely that the scene is empty.
Training 1: three devices, three digital results
The Orcha phone is intact and can be analyzed directly. The damaged Novaris and Korellia phones each need a chip removed at the desoldering station before their data can be processed. Use the supplied password Sn00py*42 where the file requests it. The Training is ready to submit when the intact device and both recovered chips have each produced a usable result.
If only one or two results appear, check the damaged phones rather than searching the apartment again. Heating and lifting a chip is only preparation; the chip must still go through digital analysis.
Training 2: include the bottle print
Handle the four scene prints, then collect the wine bottle as its own evidence item. Fume the bottle in the laboratory to reveal the additional unknown print. Compare the complete unknown set with the James Doe and John Doe references supplied by the case. Early updates corrected this Training’s displayed accounting, so use the current summary instead of a launch-day click total.
Training 3: prepare both sides of the DNA comparison
The unknown biological sample is on the kitchen counter. Collect it and create its DNA profile, then create the profile for the provided John Doe reference. Only after both profiles exist should you open the comparison, finish it, and export the result. If the comparison cannot be completed, the likely problem is a missing profile rather than a secret dial setting.
Training 4: document the path and manufacture a reference
Recover the projectile from the bedroom impact and document the trajectory with the rod, tripod, and spray tools. The firearm is under or near the living-room table. In the laboratory, use that weapon at the water tank to produce a reference projectile, compare it with the scene projectile, and export the report. A documented path and a projectile match are separate pieces of work; complete both.
The case cabinet in order
Use the table to jump to the file that is open. The middle column identifies the easiest search zone to miss; the last column shows what commonly appears only after laboratory work or a sent message.
| Case | Easy-to-miss scene area | Later gate |
|---|---|---|
| Cold Storage | Floor/trash and rear boxes | Two chips plus two direct device results |
| Hotel Burglary | Mug and safe surfaces | Fumed mug print |
| Breaking and Entering | Bathroom razor and windowsill | Both unknown DNA profiles |
| Shooting Mishap | Kitchen/window impact | Reply supplies the firearm |
| Basement Blood Scare | Refrigerator cluster and mop bucket | Dieter Feldmann comparisons |
| Smash and Grab | Phone inside a tire | Jens material and second phone |
| Misfire and Misdirection | Bedroom light switch | Reference round and path report |
| Coin Trail | Washing machine and flash drive | Safe code 0815 and return visit |
| Whiskey and Gunfire | Service area behind the bar | Later firearm for ballistics |
| Shattered Cash Machine | Bag near entrance and broken ATM | Phone result opens suspect work |
| Paper Trails | Small objects among papers | Three fumed latent prints |
| Blood Ties | Behind-bar and restroom-stall areas | Phone result supplies laptop password |
| Barrel Secrets | Barrel, shed, and yard objects | Knife and gun prints after fuming |
| Parking Lot Retribution | Black car and central evidence field | Second firearm arrives later |
| The First Stone | Displays, shelves, and main desk | Gold-plated brick and second blood sample |
Case 1: Cold Storage
Find four devices and the laptop password. The workbench holds the laptop and password material. Search the back-left floor and trash area for the two damaged phones, then inspect the boxes toward the back-right for the intact phone. Mark and photograph each dark device before collection; seeing it is not the same as registering it.
At the lab, recover chips from both damaged phones. Analyze those chips, analyze the intact phone directly, and use the credential on the laptop. You need four digital outputs from four collected devices. A short result list points to unfinished device processing, not a fifth object.
Case 2: Hotel Burglary
Search the entrance drawer, both bedside-table areas, the television table, and the visible faces of the safe. Take the mug with you; fuming it adds an unknown print that a surface-only sweep cannot produce. Older material under the Another Robbery name conflicts over whether there are seven or eight direct lifts, so do not force either old total onto the current build.
Fume the mug before starting the full comparison workload. Compare every unknown currently shown in your file against all four references. The case is ready when the comparison set displayed by your client is complete, not when it matches a historic claim such as exactly 32 comparisons.
Case 3: Breaking and Entering
The two unknown biological samples are associated with the bathroom razor and the windowsill. Photograph and collect both. The July 29 update added bathroom clutter, so isolate the razor with its marker rather than relying on an old screen coordinate.
Create profiles for both scene samples and the Marcel Mayer reference, then perform and export the requested comparisons. If the lab shows only one unknown, revisit the razor/windowsill pair before touching the analysis controls again.
Case 4: Shooting Mishap
During the first visit, recover the projectile around the kitchen/window impact and document its trajectory. Submit that work and read the response. The neighbor’s pistol arrives through the case correspondence, so a reference projectile cannot be made from scene evidence alone.
Use the supplied pistol at the water tank, compare its reference round with the recovered projectile, export the match report, and send the requested attachment. An empty reference selector means the firearm message has not been completed yet.
Case 5: Basement Blood Scare
Collect biological material at the wooden wall, refrigerator door, lower refrigerator area, and mop bucket. For prints, work slowly around the floor by the door, the refrigerator at several heights, the upper shelf, and the cardboard box. This cluster contains overlapping targets; validate one marker and photograph before moving to the next.
Process the first comparison set with Markus and send it. The reply introduces Dieter Feldmann and creates another round of work. Patches changed Markus-related minutiae, so ignore old fixed feature lists. Finish the comparisons requested for both stages and check that no Dieter material remains attached to unread mail.
Case 6: Smash and Grab
The vehicle’s prints are spread across the rear/trunk, roof, and driver’s-door areas. The damaged phone is inside a tire near the green dumpster; photograph it before removal, then extract its chip in the lab.
Complete the first print work with Martin and analyze the recovered chip. After submission, the case adds Jens material and an intact second phone. Analyze that phone directly and perform the new comparisons. If the car sweep is complete but the file remains active, look in the reply for the second device instead of repeating the vehicle search.
Case 7: Misfire and Misdirection
Inspect the table, bedside furniture, drawer, sink, and bedroom light switch for prints. One older overview says four, while its own detailed locations and later accounting identify the light-switch print as a fifth. When your summary is one short, the switch is the best recovery target.
Collect the projectile near the entrance and the gun from the coffee-table area. Document the path toward the bedroom, produce a reference round from the firearm, compare the projectiles, and export the result. Do not substitute copied ballistics coordinates for the feedback in the current instrument.
Case 8: Coin Trail
On the first visit, find the initial eight-print set, smartphone, flash drive, and four password clues. The washing-machine surface can hide a print in its finish. Decrypt the flash drive to obtain 0815, then use that combination on the safe behind the painting.
Opening the safe advances the case to another scene pass. That return adds three prints and a second phone; process and submit both the new device work and the new comparisons. The code opens the next phase, not the end of the file.
Patch 7 repaired a rare broken-evidence state in this case. If the file was active before that patch and an expected item still cannot register after summary, lab, export, and inbox checks, restart Coin Trail itself. Do not wipe unrelated completed cases.
Case 9: Whiskey and Gunfire
Divide the bar into tables, counter/service area, and pool-table zones. The working ledger can include sixteen prints, one biological sample, three damaged phones, a projectile, and trajectory work. The July 29 update moved the phones into the service area behind the bar, so search that whole side instead of copying old pixel positions.
Recover all three chips before expecting three digital results. Process the biological and fingerprint material and submit the first ballistics work. Later mail supplies the firearm used to manufacture the reference round. A scene projectile with no correct reference is usually waiting for that message.
Case 10: Shattered Cash Machine
Search the round table, the touch areas on the intact ATM, and the dense debris around the damaged ATM as separate zones. The route can contain twelve prints, a smartphone, and four biological samples: one by the bag near the entrance and three around the destroyed machine. An older overview says three samples but its detailed evidence list supports four; follow the live summary.
Analyze the phone and send the available packet. Its result opens later suspect work, returning you to fingerprint and DNA comparisons. If the first message succeeds and the folder stays open, inspect the new references before hunting for a thirteenth print.
Case 11: Paper Trails
Collect ten scene prints, three biological samples near the equipment cases, a flash drive, and three portable objects: scissors, a plastic bottle, and blank identification cards. Paper, equipment, and small evidence overlap visually, so finish one marker-photo-collection sequence before placing the next marker.
Fume the scissors, bottle, and blank cards. Their three latent prints expand the unknown set beyond the direct lifts. Process the drive and DNA samples, then export everything requested. Some plausible prints in early builds were not accepted by the score system; trust current marker validation rather than a screenshot of an obsolete target.
Case 12: Blood Ties
Clear the reused bar by area: pool section, tables and counter, black-box/laptop cluster, behind the bar, and the restroom-stall side. The route can show fifteen scene prints, one biological sample, two firearms, four devices, and projectile/trajectory work. An old introduction claims sixteen prints but its detailed route names fifteen; treat fifteen only as a search aid.
Analyze the intact Orcha phone and send its result to receive the laptop password. Process damaged devices as required, then return to the laptop when the credential arrives. One firearm and the biological evidence sit behind the bar; the other firearm is reached from the stall area. Use the weapon requested by the file when producing each reference round.
Patch 7 also repaired a rare in-progress save failure here. Restart only this active case if it predates the repair and remains broken after the normal registration, lab, export, and mail checks.
Case 13: Barrel Secrets
Zone the yard around the barrel, shed, water tank, wheelbarrow, jerry can, pot, and lid. The practical route has fifteen direct prints and four biological samples in this crowded area. Take the knife and firearm as portable evidence; fuming them produces two more latent prints.
Finish both fuming jobs before treating the unknown-print list as final, and create all biological profiles before comparisons. Official patches corrected person data, a barrel label, witness information, and rating behavior. Use current names and requests in the case file instead of an old identity map or a memorized minutiae layout.
Case 14: Parking Lot Retribution
Begin at the black car for six prints and the device. Then clear the central field for three biological samples, five projectiles, the scene firearm, and the trajectories accepted by your current scene. Keep recovered projectiles and recorded paths as separate entries; finding one does not complete the other.
Patch 4 changed the rating so it should not demand more than three trajectory captures. That fix does not remove the five projectile records or any valid path your build still permits. Submit the first evidence and device results, then open the reply that provides the second firearm for the remaining comparisons. The July 29 update also corrected a fingerprint mix-up, so discard older person-to-print assignments.
Case 15: The First Stone
Search the two reception-desk positions, shelves, certificate and award displays, coffee/liquor area, and main desk for the initial ten prints. Collect the laptop, biological sample, and dirt evidence, process the first packet, and send it.
The later construction-site material includes a gold-plated brick and another blood sample. Create the new DNA result and fume the brick to add a latent print beyond the ten direct lifts, then finish the comparisons requested by the response. A near-launch walkthrough alternates between Falk and Frank; the case context uses Falk Hagen, but the current mail should control every evidentiary conclusion.
The cabinet is finished only when the final submission changes the file to its intended solved state. Patch 1 made summaries clearer and introduced an Abandoned state for cases closed without a solution, so “closed” is not enough. Confirm the status after the last message. If it still does not solve, identify which of the three screens is short—summary, laboratory results, or inbox—and repeat only that part.
Sources & verification
Game identity, developer and publisher credits, Windows release information, and official screenshots were rechecked through the Steam store page. The current boundary and progression changes were checked against the official Steam announcement archive through Patch 8. Case locations were cross-checked against readable English walkthroughs and all English Steam Guides currently listed for AppID 3765010. Conflicting fixed settings, obsolete rating claims, and unsupported identity conclusions were not carried into the route.