"There are exceptions like Sussex which allows the public to report crime online and Avon and Somerset which allows the public to track the progress of reported crimes online.
"In general, I think we would all admit that more could and should be done," he said.
Green recommended that police forces build on their use of existing technologies. For example, all forces provide information via their website and Twitter. Ninety-five percent provide information via Facebook, and two-thirds via Youtube.
"But I do not want to limit our ambitions to doing old things with new tools," he said.
"We want to harness this potential to bring about transformational change. That is what digital policing is about."
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