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Police forces in the US are turning to futuristic technology to tackle a rise in violent crime and murder across the country. In one area of California, they are even using robots to patrol the streets. There, the police are claiming it's led to a reduction in crime and an increase in arrests. In New York they even experimented with a robot police dog, but with mixed results. This and other cutting-edge technologies are helping the police – and the public - stay one step ahead, but they are often controversial. In this programme we look at the some of the best ways that technology can make the streets safer. Presented and produced by Ben Wyatt Image: The Robocop K5