Why on earth haven't they removed him in a diplomatic bag or handcuffed to their ambassador?
Wikipedia mentions a previous time this may have happened.
"In 1964, a Moroccan-born Israeli double agent named Mordechai Ben Masoud Louk (also known as Josef Dahan) was drugged, bound, and placed in a diplomatic mailing crate at the Egyptian Embassy in Rome, but was rescued by Italian authorities.[4] The box that he had been sealed into "had almost certainly been used before for human cargo,"[5] including possibly for an Egyptian military official who had defected to Italy several years before but then disappeared without a trace before reappearing under Egyptian custody and facing trial."