Former Whitehall adviser Patrick Rock has been bailed to appear at Westminster Magistrates Court on July 3 after he was charged over child abuse images.
Judith Reed, a senior lawyer with the CPS Organised Crime Division, said: "We have determined that there is sufficient evidence for a realistic prospect of conviction and that a prosecution is in the public interest."
More top news
Peers vote by majority of 119 to give MPs a ‘meaningful vote’ on the final Brexit deal, forcing the issue back to the Commons.
British researchers are working on modifying wheat starch to make it harder to digest and healthier.
The tragedy happened in an area popular with graffiti artists.