Called for in the wake of 9/11, the Integrated Wireless Network (IWS) project has already been repeatedly scaled back.
Today, the Department of Justice continues to rely on several separate land mobile radio systems, some of which are unreliable, obsolete, and fail to interoperate with one another. Agents often have to swap radios, share channels, or refer to a book of radio frequencies and manually switch between those frequencies to stay online. Radios remain insecure, as much of the current equipment fails to meet encryption requirements. Much of the agency's equipment is more than 15 years old and is no longer even supported by the manufacturer."
Link to Original Source