Sir Keir Starmers says the question of "how accusations of racism informed decision making" must be addressed.
BBC Verify has analysed bodycam footage that was released by the police of Henry Nowak after being stabbed by Vickrum Digwa.
The former SNP chief executive is facing a lengthy jail sentence after admitting embezzling funds from the party.
A second batch of files relating to Lord Mandelson's appointment as US ambassador has been released.
Experts are trying to find the best way to screen for prostate cancer, since blood tests alone are not accurate enough for most men.