A focus on offenders and using technology to make sure officers are in the right place at the right time has brought crime figures to a 20 year low in Leicester.
Chief Constable Simon Cole told ITV Central that they have seen a drop of 10 % in reported crime in 2012.
The fall in crime is equivalent to 6,849 fewer victims of crime than in 2011.
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He demanded the money after placing a carrier bag containing what appeared to be a heavy object on the counter.
Closures will be in place on the Aston Expressway, Park Circus and Salford Circus. There will be some full weekend closures and diversions.
West Midlands Police have said specially trained police negotiators are speaking with the woman to try and talk her down to safety.