Dutch police homepage http://www.politie.nl/English
Open Computer Forensics Architecture (OCFA) 
  Modular computer forensics framework built by the Dutch National Police Agency. The main goal is to automate the digital forensic process to speed up the investigation and give tactical investigators direct access to the seized data through an easy to use search and browse interface. 
  http://ocfa.sourceforge.net
NIST's National Software Reference Library (NIST NSRL)
  to promote efficient and effective use of computer technology in the investigation of crimes involving computers
  http://www.nsrl.nist.gov
Autopsy
  graphical interface to the command line digital investigation tools in  The Sleuth Kit.
  Link to Autopsy http://www.sleuthkit.org/autopsy
The Sleuth Kit 
  The Sleuth Kit (TSK) is a collection of UNIX-based command line tools that allow you to investigate a computer. The current focus of the tools is the file and volume systems and TSK supports FAT, Ext2/3, NTFS, UFS, and ISO 9660 file systems
  http://www.sleuthkit.org/
Scalpel 
  Scalpel is a fast file carver that reads a database of header and footer definitions and extracts matching files from a set of image files or raw device files
  http://www.digitalforensicssolutions.com/Scalpel