09:42
4
Notifications
DD
Dom Dolla added you to Case CAR-2026-0047
09:48 AM · Today
SH
Sgt. Hayes assigned you as Lead Officer on CAR-2026-0031
09:35 AM · Today
DD
Dom Dolla requested your sign-off on evidence B123457
09:20 AM · Today
DS
Case CAR-2026-0043 assigned to your unit by Dispatch
Yesterday · 4:12 PM
GN

Hey, Guy Nutter

Tuesday, April 07, 2026

Recent Case
Oakland Homicide Investigation
#M123456 · Last opened: Apr 08, 5:40 PM
Ongoing
Evidence
Fingerprints
B123455 · Kitchen window
Draft
Knife
B123456 · Floor near entry
Draft
Gun
B123457 · Living room sofa
Sent for Approval
Your Cases
3
Oakland Homicide Investigation
#M123456 · Evidence (3)
Last opened: Apr 08, 5:40 PM
Ongoing
GN
DD
F
Downtown Assault
#M123450 · Evidence (4)
Last opened: Mar 18 · 2:34 PM
Handed Off
DD
SK
1
Riverside Auto Theft
#M123443 · Evidence (2)
Last opened: Mar 20 · 11:15 AM
Ongoing
F
SK
GN
All Activity
SK
Skrillex updated packaging
#B123456 · 10:28 AM
GN
Guy Nutter printed label
#B123456 · 10:15 AM
GN
Guy Nutter logged glass fragments
#B123455 · 10:02 AM
DD
Dom Dolla added fingerprint card
#B123457 · 09:45 AM
GN
Guy Nutter added blood sample
#B123456 · 09:30 AM
GN
Guy Nutter created case M123456
09:15 AM
09:42

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09:42
4
Notifications
DD
Dom Dolla added you to Case CAR-2026-0047
09:48 AM · Today
SH
Sgt. Hayes assigned you as Lead Officer on CAR-2026-0031
09:35 AM · Today
DD
Dom Dolla requested your sign-off on evidence B123457
09:20 AM · Today
GN
Case #: M123456
Oakland Homicide Investigation · Ongoing
GN
DD
F
Evidence
Media
+
Case Summary
StatusOngoing
Location—
Date openedApr 07, 2026
Officer leadGuy Nutter
Evidence items0
Chain of Custody
Case activity will appear here
No media yet
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Case Summary
Evidence0
Media0
Activity
No activity yet
Crime Scene · Oakland, CA
Interactive map · No evidence pinned yet
09:42
4
Notifications
DD
Dom Dolla added you to Case CAR-2026-0047
09:48 AM · Today
SH
Sgt. Hayes assigned you as Lead Officer on CAR-2026-0031
09:35 AM · Today
DD
Dom Dolla requested your sign-off on evidence B123457
09:20 AM · Today
GN
Case #: M123456
Oakland Homicide Investigation · Ongoing
GN
DD
F
Evidence
Case Summary
StatusOngoing
LocationCrime Scene, Oakland
Date openedApr 07, 2026
Lead officerGuy Nutter
Evidence items0
Chain of Custody
0
GN
Guy Nutter submitted blood sample to lab
#B123456 · Apr 07, 2026 10:02 AM
SK
Sarah Kim updated packaging
#B123456 · Apr 07, 2026 09:52 AM
DD
Dom Dolla added fingerprint card
#B123457 · Apr 07, 2026 09:45 AM
GN
Guy Nutter added blood sample
#B123456 · Apr 07, 2026 09:30 AM
GN
Guy Nutter created case M123456
Apr 07, 2026 09:15 AM
Photos 3 items
B123456
B123456
B123457
Videos 1 item
Video · 0:42
Add
3D Scans 0 items
Add 3D Scan
Case Summary
StatusOngoing
LocationCrime Scene, Oakland
Date openedApr 07, 2026
Lead officerGuy Nutter
Evidence items2
Photos3
Videos1
Chain of Custody
0
GN
Guy Nutter submitted blood sample to lab
#B123456 · Apr 07, 2026 10:02 AM
DD
Dom Dolla added fingerprint card
#B123457 · Apr 07, 2026 09:45 AM
GN
Guy Nutter added blood sample
#B123456 · Apr 07, 2026 09:30 AM
B123456 · Blood Sample
B123457 · Fingerprint
Crime Scene · Oakland, CA · 2 evidence locations pinned
Evidence B123456 submitted successfully
09:42
Evidence Collection
Fill in the details below to collect evidence
Evidence #: B123456
Case #: M123456
Evidence Details
Media No items added
Collection Method
Packing Material
Packaging State
Storage Temperature
Lab Exams Select all that apply
✦ AI Recommendations for Blood Sample
Based on evidence type — tap to add
Evidence Print Label
AGENCY / DEPARTMENT
METRO POLICE DEPARTMENT
CHAIN OF CUSTODY
EVIDENCE NAME
Blood Sample
CASE NUMBER
M123456
DATE COLLECTED
March 24, 2026
TIME COLLECTED
09:30
DESCRIPTION
Blood sample found near the entrance of the building. Sample appears fresh, approximately 2–3 hours old. No contamination visible.
FOUND BY
FIELD TESTS
SIGNED BY
Ofcr. G. Nutter
OFFICER / BADGE
Badge #4821
SIGNATURE
G. Nutter
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This QR links to the complete evidence chain-of-custody record
09:42
Blood Sample
Evidence #: B123456 · Case #: M123456
Evidence Report
DRAFT
Evidence #
B123456
Case #
M123456
Evidence Type
Blood Sample
Collection Date
Apr 07, 2026
Collection Time
09:30 AM
Location
Crime Scene, Oakland
Lead Officer
Guy Nutter
Lab No.
LAB-2026-001
Evidence Notes

Blood sample found near the entrance of the building. Sample appears fresh, approximately 2–3 hours old. No contamination visible. Surrounding area secured.

Packaging
Evidence Bag · Sealed · Refrigerated
Media
Lab Examinations
Biology (Blood Typing / DNA) · Fingerprints
Label
Scan to view full chain-of-custody record
Chain of Custody
GN
Guy Nutter created evidence B123456
#B123456 · Apr 07, 2026 09:15 AM
Officer Signature
Guy Nutter · Badge #4821 · Apr 07, 2026 09:42 AM

By submitting this evidence report, I certify that the information provided is accurate and complete to the best of my knowledge. This record is legally binding and will be entered into the official chain of custody.

09:42
Evidence Linkage
3 design options for parent-child relationships
Scenario
Gun → Blood Sample & Fingerprints · Drug Bag (unlinked)
1
Nested Accordion
Primary card expands to reveal children inline — relationship is structurally embedded.
Example
B123455 · Firearm
JD
Glock 17 Handgun
Submitted · 08 Jan PRIMARY
B123456 · Biological
JD
Blood Sample
Submitted · 08 Jan
B123457 · Trace
LM
Fingerprints (Latent)
Submitted · 08 Jan
B123458 · Narcotics
AS
Drug Bag (White Powder)
Submitted · 08 Jan No links
✓ Compact when collapsed ✓ Hierarchy is self-evident ⚠ Hides children by default ⚠ Complex at 3+ levels Best for: few children per parent
Edge cases: If a child itself has children (3-level nesting), the inner accordion gets very tight. Use "Show X more" truncation beyond 5 children. A child shared between two parents shows duplicated rows.
2
Gutter Tree
All cards stay visible simultaneously; indentation + connecting lines show hierarchy.
Example
PRIMARY
B123455 · Firearm
JD
Glock 17 Handgun
Submitted · 08 Jan
B123456 · Biological
JD
Blood Sample
Submitted · 08 Jan
B123457 · Trace
LM
Fingerprints (Latent)
Submitted · 08 Jan
B123458 · Narcotics
AS
Drug Bag (White Powder)
Submitted · 08 Jan No links
✓ All cards always visible ✓ Familiar tree metaphor ⚠ Narrowing at 3+ levels ⚠ Long lists look cluttered Best for: browsing all evidence at once
Edge cases: Cross-case children (evidence linking to a parent in a different case) can't be shown inline — needs an external link indicator. Deeply nested trees (3+ levels) eat available card width rapidly on tablets. Sorting/filtering must keep parent-child groups together.
3
Relationship Tags
Cards stay flat and equal — relationships shown as clickable chips in the card footer.
Example — tap a child chip to highlight the parent
B123455 · Firearm
JD
Glock 17 Handgun
Submitted · 08 Jan
B123456 · Biological
JD
Blood Sample
Submitted · 08 Jan
B123457 · Trace
LM
Fingerprints (Latent)
Submitted · 08 Jan
B123458 · Narcotics
AS
Drug Bag (White Powder)
Submitted · 08 Jan No links
✓ Flat layout, equal card sizes ✓ Supports multi-parent & cross-case ✓ Interactive — jump to parent ⚠ Relationship less immediately obvious Best for: complex, many-to-many graphs
Edge cases: A child with multiple parents shows multiple chips (breadcrumb-style). Cross-case links show case number inline: "↳ Secondary of: Gun · Case #M123455". Deep ancestry (great-primary) uses a chain: "↳ Blood → Gun → Scene". Scales well on tablet as chips wrap to new lines.
Which approach fits best?
Pick one option and it will be applied across all evidence cards in the case summary.
09:42
4
Notifications
DD
Dom Dolla added you to Case CAR-2026-0047
09:48 AM · Today
SH
Sgt. Hayes assigned you as Lead Officer on CAR-2026-0031
09:35 AM · Today
GN
All Cases
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