The purpose of CAID is to eliminate the duplication of effort when investigating these photos. Often when storage drives are seized, they contain thousands or millions of images, and dozens of different police departments could end up unknowingly investigating the same victims. Law enforcement liaison officer Johann Hofmann said, "We're looking at 70, 80, up to 90% work load reduction. We're seeing investigations being reduced from months to days."
The Old Weather Project uses citizen scientists to transcribe and digitize observations that were scrupulously recorded on a clockwork-like basis, and it is one of several that climate scientists are using to create "a three-dimensional computer simulation that will provide a continuous, century-and-a-half-long profile of the entire planet's climate over time" — the 20th Century Reanalysis Project. Data is checked and rechecked by three different people before entry into the database, and the logbook measurements are especially valuable because they were compiled at sea.
Eric King, Deputy Director of Privacy international, said: "We now know that data from any call, internet search, or website you visited over the past two years could be stored in GCHQ's database and analyzed at will, all without a warrant to collect it in the first place. It is outrageous that the Government thinks mass surveillance, justified by secret 'arrangements' that allow for vast and unrestrained receipt and analysis of foreign intelligence material is lawful. This is completely unacceptable, and makes clear how little transparency and accountability exists within the British intelligence community."