Inquest hears deaths 'harsh reality' of sieges

A British counter-terrorism specialist says Australians need to accept that people are likely to be killed when police intervene to end a siege.

Armed tactical response officers stand ready to enter the Lindt cafe during a siege in the central business district of Sydney (AP Photo/Glenn Nicholls) Source: AAP

Detective Senior Constable Simon Chesterman has told the Sydney siege inquest it's the harsh reality of such situations.

Alyshia Gates spoke with Greg Dyett.