Four Iran-linked probes in four weeks: the puzzle facing London’s police

If the Islamic republic was behind the incidents, it might be sending a coded warning to its enemies, experts say

Counter-terror police investigate whether Iran ordered series of arson attacks in London

Scotland Yard also warned that it is dealing with an ‘unprecedented level of national security investigations with suspected links to foreign states, many of those with dangerous and often reckless intentions’

By Tara Cobham