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How-to Guides

Use AI Evidence Analysis

How to request AI categorization, review anomaly alerts, and generate summaries

How to Use AI Evidence Analysis

This guide shows you how to use AI to analyze evidence in your cases. You will learn to request categorization, review anomaly alerts, generate summaries, and verify AI suggestions.

You need the ai:analyze_evidence permission to use evidence analysis features. Most Detective and Supervisor roles have this permission by default.


What AI Evidence Analysis Does

AI evidence analysis helps you:

CapabilityWhat It Does
CategorizationGroups similar evidence items together
Anomaly DetectionFlags items that seem unusual or inconsistent
Summary GenerationCreates readable summaries of evidence collections
Gap IdentificationSuggests evidence that might be missing
Connection MappingShows relationships between evidence items

The AI identifies patterns. You decide what matters.


Request AI Categorization

AI categorization groups your evidence by type, relevance, and characteristics.

Step 1: Open Evidence Tab

  1. Open your case
  2. Click the Evidence tab
  3. Click AI Analysis in the toolbar

Step 2: Request Categorization

  1. Click Categorize Evidence
  2. Select the evidence items to analyze (or choose "All")
  3. Click Analyze

The AI reviews each item and suggests categories.

Step 3: Review Categories

The AI presents categories such as:

CategoryExample Items
Physical - WeaponsKnife, firearm, blunt object
Physical - BiologicalBlood sample, hair, DNA swab
Digital - CommunicationsText messages, call logs, emails
Digital - MediaPhotos, videos, audio recordings
DocumentaryReceipts, contracts, notes
Scene DocumentationCrime scene photos, diagrams

For each item, you see:

  • Current category assignment
  • AI suggested category
  • Confidence level
  • Reasoning

Step 4: Accept or Modify

For each suggestion:

  • Click Accept to apply the AI's category
  • Click Modify to choose a different category
  • Click Skip to leave unchanged

AI categorization is a suggestion. Review each item to ensure accuracy. You know your case better than the AI.


Review Anomaly Alerts

AI anomaly detection flags evidence items that seem unusual or inconsistent with other items.

Step 1: Check for Alerts

  1. Open the Evidence tab
  2. Look for items with a yellow alert icon
  3. Or click AI Analysis then View Anomalies

Step 2: Review Each Anomaly

For each flagged item, you see:

FieldWhat It Shows
ItemThe evidence item flagged
Anomaly TypeWhat seems unusual
DetailsWhy the AI flagged this
Related ItemsOther items involved in the pattern

Common Anomaly Types

Anomaly TypeWhat It Means
Timeline InconsistencyItem timestamp does not fit the timeline
Location MismatchItem location differs from related items
Duplicate PotentialItem may duplicate another
Chain GapMissing step in chain of custody
Description ConflictDescription contradicts other evidence
Unusual PatternItem does not match expected patterns

Step 3: Investigate the Anomaly

For each alert:

  1. Read the AI's explanation
  2. Check the related items
  3. Investigate whether this is:
    • A real issue that needs attention
    • A data entry error to correct
    • A false positive to dismiss

Step 4: Resolve or Dismiss

  • Click Investigate to add the item to your task list
  • Click Note to add your assessment without action
  • Click Dismiss to mark as reviewed (not an issue)

All actions are logged for audit.


Generate Evidence Summaries

AI summaries compile your evidence into readable narratives for reports and briefings.

Step 1: Request a Summary

  1. Open the Evidence tab
  2. Click AI Analysis
  3. Click Generate Summary

Step 2: Choose Summary Type

Select the type of summary you need:

TypeBest For
Complete InventoryFull listing of all evidence
Executive SummaryBrief overview for supervisors
Timeline SummaryEvidence organized chronologically
Category SummaryEvidence grouped by type
Lab Status SummaryFocus on items at or pending lab

Step 3: Select Scope

Choose what to include:

  • All Evidence — Everything on the case
  • Selected Items — Only items you select
  • By Category — All items in specific categories
  • By Date Range — Items from a time period

Step 4: Review the Approval Card

Because generating a document is a significant action, you see an approval card:

FieldWhat It Shows
ActionGenerate evidence summary
TypeSummary type you selected
ScopeWhat will be included
Risk LevelUsually Low or Medium

Click Approve to generate the summary.

Step 5: Review and Edit

The AI generates a draft summary. Review it for:

  • Accuracy — Are facts correct?
  • Completeness — Is anything missing?
  • Clarity — Is it easy to understand?
  • Tone — Is it appropriate for the audience?

Make edits as needed before sharing.

AI-generated summaries are starting points. Always review and verify before using in official reports or court documents.


Verify AI Suggestions

Every AI analysis requires your verification. Here is how to verify effectively.

Check Facts Against Source

For any AI statement:

  1. Identify the claim
  2. Find the source evidence
  3. Verify the claim matches the source

Example:

  • AI says: "Blood sample collected at 3:45 PM"
  • Check: Open the evidence item, verify the timestamp

Look for Missing Context

AI may miss context you know:

  • Prior history with subjects
  • Information from interviews
  • Details not in the system
  • Your professional assessment

Add this context to your notes.

Trust Your Experience

If something seems wrong:

  • Investigate further
  • Check the source data
  • Note your concerns
  • Do not accept AI output that contradicts your training

Document Your Verification

When using AI analysis in reports:

  1. Note that AI assisted with analysis
  2. Document your verification steps
  3. Add your professional assessment
  4. Sign as your work (because it is, after verification)

Best Practices

Regular Analysis

Run AI analysis periodically, not just at case end:

  • After adding significant evidence
  • Before briefings
  • When preparing reports
  • When the case seems stuck

Cross-Reference

Use AI analysis alongside manual review:

  • AI catches patterns
  • You catch context
  • Together you miss less

Act on Anomalies

Do not ignore anomaly alerts:

  • Most are worth investigating
  • Document why you dismiss any
  • Patterns of dismissed alerts may indicate a real issue

Save Summaries

Keep generated summaries:

  • They show investigation progress
  • Useful for case reviews
  • Help with handoffs

Troubleshooting

AI Analysis Button Not Available

  1. Check that you have ai:analyze_evidence permission
  2. Verify you have at least one evidence item on the case
  3. Try refreshing the page

Analysis Taking Too Long

For large evidence collections:

  1. Select a subset of items
  2. Analyze in batches
  3. Contact support if consistently slow

Anomaly Alerts Seem Wrong

  1. Check the evidence data for errors
  2. Review the AI's reasoning
  3. Dismiss with a note explaining why
  4. Report persistent false positives to admin

Summary Does Not Match Evidence

  1. Check that all evidence is current
  2. Verify items were not modified after analysis
  3. Re-run the analysis
  4. Manually correct the summary

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