The Tool Desk
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What should a forensics workstation do?
The workstation is more than a fast computer. It is part of an evidence-handling process: it must let examiners work without changing source evidence, keep case material controlled and distinct, and produce work that can be repeated and audited. SWGDE’s Best Practices for Computer Forensic Examinations says examination workstations should provide an “isolated, secure, known environment to perform analysis.”
That known state can be supported through virtualization or filesystem and folder organization that separates case data, and by restoring the workstation from a sanitized, known image or state. The restoration image and its configuration need maintenance and validation too; an old image is not automatically a trustworthy baseline.
How should you size the hardware?
Build around the validated tools, supported operating systems, evidence media and expected workload—not a generic parts list. SWGDE guidance calls for meeting or exceeding the minimum requirements of the tools in use and having adequate storage for the examination, tools and processing caches. It does not prescribe a universal processor, memory, graphics or capacity number.
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- Includes Tableau T356789iu Forensic Universal bridge, TC2-8-R2, TC4-8-R2, TC6-8, TC-USB3, TC7-9-9 and USB B Male to USB 19 Pin Header Cable
- The Tableau Forensic Universal Bridge is an integrated write-blocker that mounts in a drive bay of a forensic workstation and supports forensic acquisitions of SATA, USB 3.0, PCIe, SAS, FireWire 800, and IDE.
- Mounts in one 5.25” half-height drive bay
- Color LED indicators for “Write Block” or “Read/Write” mode visibility
- USB 3.0 host computer connection, Two SATA power connectors
- Tool compatibility: Check each tool’s current minimum system requirements and supported operating systems. Treat a change in hardware, operating system, driver or tool version as a configuration to evaluate under lab policy.
- Case throughput: Estimate evidence volume, concurrent cases and work such as indexing or decompression. These factors affect practical performance and cache demand, but the cited guidance does not provide benchmark scores or a component-level formula.
- Storage roles: Plan for operating-system and tool files, active case working data, processing caches, and retained acquired evidence as your procedures require. Working capacity and speed do not replace a trusted, access-controlled destination for evidence.
- Evidence interfaces: Confirm the workstation and acquisition path can connect the media types encountered through suitable write-blocking hardware.
Compare complete, documented configurations rather than processor labels alone: compatibility, storage layout, supported interfaces, isolation and restoration, and the ability to validate the hardware/software combination all matter.
How do you protect original evidence?
Use a hardware or software write blocker to protect original digital evidence from writes. For hardware, select a device that supports the media interfaces encountered and follow its operating instructions. Do not assume a generic adapter or an operating-system setting provides device-level write protection. Validate the blocker and the workflow in the configuration in which they will be used.
Rank #2
- Backlit Interface - Device status, device information, logical unit (LUN) select, and bridge information are easily accessible
- Supports USB 1.0/2.0/3.0, Flash Drives, Mass Storage Drives, and any "bulk storage" drive
- Kit Includes - TP2 Power Supply with US-Style power cord, TC-USB3 USB 3.0 (A to B) cable, 6 foot length, Soft-Sided bag and Quick Start Guide
- Hardware-Based USB 3.0 Write Blocker
SWGDE’s Model Standard Operation Procedures for Computer Forensics offers an example of equipment and procedures for write protection, destination media and imaging. It is an example SOP, not a substitute for an organization’s own controlled procedures or validation.
How should acquisition and examination be validated?
Test and validate acquisition and examination tools before use in accordance with organizational policy. Validation should cover the actual hardware, software and process—not merely a product’s general reputation.
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Rank #3
- TX2 Forensic Imager Kit Includes: TX2 Forensic Imager, TP8 Power Supply, US Power Cord, (x4) TC4-8-R4 Unified SATA/SAS Signal and Power Cable (Molex), (x2) TC-PCIE4-8 PCIe Adapter Cable, 8", (x2) TCA-USB3-AC USB 3.0-A to USB 3.1-C Cable Adapter, Velcro Cable Ties (TPKG-VCT-5), Microfiber Cloth (TPKG-CLOTH), Quick Ref Guide
- LIGHTNING-FAST PROCESSING AND IMAGING: Powered by parallel hash verification and concurrent imaging, the TX2 is up to 3.8x faster than its predecessor. Capture and verify evidence in record time across multiple jobs.
- STREAMLINED RECONFIGURATION PROCESS: The TX2 makes it easy to pivot between tasks with a simplified reconfiguration process. Wipe, format, or encrypt all in one.
- UNLIMITED CONCURRENT OR CONSECUTIVE QUEUEING: The TX2's architecture is built for multitasking, allowing for unlimited concurrent or consecutive queueing. Stack jobs back-to-back or run several at once.
- OPTIMAL POWER ALLOCATION: The TX2 intelligently allocates power with dynamic resource assessment to maintain peak performance during heavy workloads. Its dynamic power management evaluates task demands in real time, ensuring every imaging job runs at optimal speed.
For disk imaging, SWGDE’s Minimum Requirements for Testing Tools Used in Digital and Multimedia Forensics (18-Q-001-2.1) calls for tests using known datasets. Check that all targeted media was acquired, include media types regularly encountered, and verify that the known dataset was acquired correctly. If a test produces anomalies, understand and document them rather than treating an unexplained result as success.
Keep validation records and relevant settings and logs. Controlled updates and documented changes help establish which combination of tools and equipment produced a result, and make later work more repeatable.
Rank #4
- Includes: Tableau T3iu Forensic SATA Drive Bay and 17" USB B to USB 19 Pin Header Cable
- The Tableau Forensic SATA Drive Bay is an integrated write-blocker that mounts in a drive bay of a forensic workstation and supports forensic acquisitions of 3.5” and 2.5” SATA hard drives.
- Mounts in one 5.25” half-height drive bay
- USB 3.0 host computer connection
- Read/write mode capability via internal DIP switch
Where should acquired data be stored?
Store acquired data on a trusted platform with appropriate security controls. SWGDE’s Best Practices for Computer Forensic Acquisitions recommends raw data or a well-documented, widely used forensic container. Containers can preserve metadata and integrity information; open, widely utilized formats can reduce dependence on a single vendor or tool. Choose the format that fits the validated workflow and preserve the information needed to interpret and verify the acquisition.
Use stable power and a controlled environment for acquisition. Separate case data, keep access controlled, and maintain contemporaneous notes. Procedures should prevent data from different cases being commingled, and should make acquisition and examination auditable and repeatable where possible.
Best Value
- TD4 Forensic Duplicator Kit includes: TD4 Forensic Duplicator, TP6 Power Supply, US Power Cord, (x3) TC4-8-R4 Unified SATA/SAS Signal and Power Cable (Molex), TC-PCIE4-8 PCIe Adapter Cable, 8" (Gen3 x4), TA-PCIE-PCIE4 Adapter (adapts between PCIe Gen2 and Gen3+), (x2) TCA-USB3-AC USB 3.0-A to USB 3.1-C Cable Adapter, Velcro Cable Ties (TPKG-VCT-5), Microfiber Cloth (TPKG-CLOTH), Quick Reference Guide
- Image data anywhere—native support for SATA, SAS,PCIe, and USB-C.
- Intuitive, seamless workflows—custom-built UI on color, touchscreen interface.
- Fast, efficient targeted acquisitions with local imaging capability.
- Wipe, format, and encrypt options for destination media.
A practical procurement and setup checklist
- Inventory the work. Identify the evidence types and media interfaces encountered, the validated tools and their current system requirements, expected evidence volume, and likely concurrent processing.
- Design the environment. Decide how cases will be isolated, how the workstation will be restored to a sanitized known state, and how that baseline will be maintained and validated.
- Plan storage and security. Allocate working space for tools, case data and caches; define a trusted, access-controlled destination for acquired data; and specify the formats and records required by procedure.
- Select and validate write protection. Match hardware to the media interfaces and operating conditions in use, follow its instructions, and test the complete acquisition path.
- Test the full configuration. Use known datasets and regularly encountered media types, verify the intended acquisition, and document anomalies, settings and results under organizational policy.
- Maintain controlled change. Record tool and configuration changes, preserve relevant logs, and revalidate when policy or the nature of the change requires it.
What a workstation specification cannot guarantee
A powerful machine cannot by itself establish evidence integrity, and a write blocker alone cannot make an acquisition process validated. The defensible setup is the combination of suitable, supported hardware; controlled isolation and storage; tested tools and workflows; and procedures that preserve documentation and case separation. SWGDE guidance is practice guidance, not certification of one universal workstation build. Confirm current controlled document versions and tool-manufacturer requirements before procurement or use.
Quick Recap
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