A woman died and her four children fell ill after consuming poisonous puffer fish.
Police in Tboung Khmum province questioned a food vendor over a poisoning incident that affected nearly 40 students.
Conservationists call for a boycott of bushmeat and a halt to using poison in wildlife.
The laboratory is not on the global watchdog centers’ list, a Malaysian court heard.
Inspectors began examining the poison used to strike down the Russian former spy.
A poisoned pond was found in a conservation area in Chheb district, might affect wildlife.
Former military commander committed war crimes in Yugoslavia, drinks poison.
Other suspects could have poisoned Kim Jong-nam besides the two women on trial.
Lawyers for two women accused of murdering Kim Jong-nam say low enzyme levels blood may be caused by liver disease.