Other findings carried out by The Chief Inspector of Constabulary showed that few forces in England and Wales questioned victims to establish whether their complaint was a one-off or whether the caller was persistently targeted.
More top news
Arkansas has become the first US state in 17 years to carry out back-to-back executions after putting two inmates to death.
Up to three million children risk going hungry over the school holidays, with increasing numbers of families relying on food banks, MPs say.
Tuesday will be a cold and windy day across the British Isles with a mix of sunshine and showers.