Charges have been laid against two people in Western Australia and Queensland alleging they imported euthanasia drugs.

State and federal police have visited 12 members of the group Exit International over the past month in Western Australia, South Australia and Queensland.

Exit International is an advocacy organisation for voluntary euthanasia.

The two people charged, a 63-year-old woman from Brisbane and a man about 70 from Albany in WA, are due to appear in local courts soon accused of the importation of Nembutal.

Exit International director Philip Nitschke, who runs a clinic in suburban Adelaide, says the group's members are being targeted, with police turning up on their doorsteps.

"They actually arrived with search warrants and then of course had the right to go through a person's house and searched and it was in one of those cases where some of the drug was found," he said.

"The other places where searches actually took place at the person's house nothing was found."