CAID - UK Standard profile

XAMN Pro license required.

The Child Abuse Image Database (CAID) is the United Kingdom’s national system used by law enforcement to detect, flag, and analyze illegal digital media images. You can run a CAID database check in XAMN.

Run hash data scan

  1. In the ribbon menu, click Project VIC and select Perform Project VIC check.
  2. Choose which artifacts you want to run the check against:
    • All
    • Filtered
    • Selected
  3. Select database.

  4. Select the PhotoDNA matching to not only grade pictures and videos with exact hash matches but also grade pictures which are similar to pictures in the database. The matching of similar pictures is based on PhotoDNA. Read more about PhotoDNA and how it works.

    Note:
    • PhotoDNA matching requires that the extraction, or a redecoding of an earlier extraction, was done with XRY 10.10 or later.
    • If you select to also grade pictures based on PhotoDNA, the time it takes to run the Project VIC check will be significantly longer. To speed up the processing, run it on a machine equipped with a compatible GPU from Nvidia.
  5. Click Check. After a Project VIC check, the matched artifacts are opened in the Project VIC filter.

Options

Enable CAID export

  1. Under Options > Project VIC, set the regional profile to UK - Standard.
  2. Select one of the following:
    • Create new... and browse to the latest CAID gold disk JSON file(s), select Official under Type, and enter CAID into to the source field. Select location and click Create.
    • Select an existing database and click Import hash sets.... Browse to the latest CAID gold disk JSON file(s) that originally created this database.
      If the warning displays incomplete rows, the imported JSON file is either incomplete or you must reimport the rest of the JSON files you used to create or update this database in the past. 
  3. Click OK.

Incomplete rows

For existing databases, you must reimport the data source and download the latest hashes from CAID to get more data. To resolve incomplete rows, reimport the CAID gold disk JSON file(s).

Do the following:

  • Click Reimport source JSON file and select files to reimport the JSON file(s) to access more data.

Report/Export

Use the VICS output format to export hash values and VIC properties. The VICS export generates a JSON file.

Export report for CAID

  1. In the ribbon, select Report/Export.
  2. Under Artifacts and Output, select the output format VICS and click Next.
  3. Select Export to CAID format. For more information, see VICS options below.
  4. Select version 2.0.
  5. Enter case number and user credentials. Follow the convention in the table below (Case number and User credentials input fields) and click Next.
  6. Enter location details. Optionally, change the file name.
  7. Click Export.
VICS options
Option Description
Export to CAID format

Only export media files that are unknown to the CAID database by default.

Note: Artifacts with a VIC Repository Name value of CAID are not exported as the files are already known by CAID. You can override this option by selecting Include all categorized media files.

To reduce the file size, properties that are not required by CAID are excluded from the export.
Include all categorized media files

Override the Export to CAID format option and export all media files.
Generate a new Case ID

Generate a new Case ID that will be used for all future exports. This is only applicable when you export from an XRY case and the value is saved in the Case fields section of the case.
Case number and User credentials input fields
Field Description
Case number

Enter the Case number as follows:

[Law Enforcement Agency ID]- [CASE REFERENCE]- [UNIQUE STAFF NUMBER]

Note: Each case submitted to CAID must have a unique file name.

Name

Enter your name in the format of Firstname.Surname.

Note: There is a ‘.’ (dot) character placed between first name and surname.
Email

Enter your email address provided in the JSON file. This value must match the user account email address held in CAID for the ContactName used in the JSON file.
Organization

Enter organization ID. You must have the same organization identifier as defined in the CAID user accounts.

Note: If your organization is collaborating with another force or agency and works across organizations, you must enter the correct organization set up with distinct organization identifiers within CAID for administrative purposes.
Phone

Enter your phone number.
Title

Enter your title.

Export artifacts without repository name

You can export artifacts without the VIC Repository Name value of CAID. Do the following:

  1. Right-click the artifact with the VIC Repository Name value of CAID and select Create property filter.
  2. Click the edit button on the added filter and select Exclude.
  3. Click + Add new filter and select Project VIC in the Add new filter dialog.
  4. Click OK.
  5. In the Project VIC filter, select all categories except 0 and 7.
  6. In the ribbon, select Report/Export.
  7. Under Artifacts and Output, select the output format VICS and click Next.
  8. Select Export to CAID format and follow the export procedure.