The TCTUTIL tools are for investigations using the file and directory name layer, for viewing deleted file names and it also gives mappings between the different file system layers.

Rather than test these tools, which involves a lot of complicated technology and the understanding of related technologies, courts instead rely on tools that have been used in past trials -- even if there are technologies that are more up-to-date and effective. TCT is certainly one of those tools as it's been used many times in court cases.

TCT is a standard tool, or rather a collection of tools that are designed to assist in a forensic examination of a computer. It's designed for Unix systems, but it can also get some data collection and analysis from non-Unix disks and media.

One thing for certain, the correlation and analyses of all of the digital data will be a key factor in any investigation. There will be many librarians and clerks who will be trying to analyze the systems. It could take months.

Most definitely, the U.K. government will play an integral part in the investigations since RIPA provides such sweeping powers.