trace

Relatives of the friend refused to accept she died of natural causes and an autopsy found traces of cyanide in her body.

To test this, they first consulted a neural connectivity database and then did experiments to trace the connections between these different brain areas.

"As we recently published in the journal PNAS, we can actually trace the male lineage of horses using the Y chromosome, which was something we could not do before," Cothran said.

On 4 November, the prime minister announced plans to create a new Border Security Command, which the government say will have enhanced powers to trace suspected traffickers and shut down their bank accounts.

The government has also said it wants to use counter-terrorism tactics to tackle people-smuggling gangs, with new powers to trace suspects' movements and freeze their bank accounts.