Three key things to know

An Australian woman accused of poisoning their relatives is examined with beef and a toxic fungus.

On Thursday, the prosecutors claimed that the photos on the 50 -year -old Irene Patterson showed her the use of kitchen standards to measure a deadly dose of death caps.

Mrs. Patterson, Don and Jill Patterson, both of them are 70, and the sister of Heather’s generation, Wilkenson, 66, are all sick and died days after lunch.

Katie Watson, a BBC Correspondent in Australia, looks at the three main things that must be known about the experience so far.