Met Police chief admits force should NOT have investigated journalist who questioned Cambridge 'plagiarism' professor 

Sir Mark Rowley said this morning officers had 'dropped the ball' after journalist Jack Grove was reported to the Met for emailing Arday about allegations of plagiarism relating to his PhD. Sir Mark Rowley said this morning officers had 'dropped the ball' after journalist Jack Grove was reported to the Met for emailing Arday about allegations of plagiarism relating to his PhD.