London - The veteran alien pathologist has only just completed Russian mobster Boris Berezovsky's autopsy and will lead a NCIS-style morgue team probing the dead despot's remains according to Our-Man-At-The-Cold-Marble-Slab in Barking, Isle of Dogs.
The Cold War dictator died of a massive out-of-body experience this morning after years of malingering at UK taxpayer expense.
Speaking to reporters about the grim task ahead Santilli, 69, said he hoped to recover the extraterrestrial tracking device implanted in her body on NATO orders just after her UK 1979 general election victory.
"Technically she may be dead," an aide commented, "but the trouble with Mrs T was her awesome ability to regenerate at will, a bit like a worm that just grows another bit of its body when hacked to pieces by a gardener's spade."
The ex-PM's corpse will be transported to the UK's own Area 51 subterranean complex where Santilli's team will perform pathology's last rites.
She'll then be shuttled off to a Northern England landfill site where her cremated remains will be scattered after sundown.
The Duke of Edinburgh 'is probably next'.