Sowing doubt: people around world receive mystery seed parcels

Packages marked as earrings' spark biosecurity concerns and global investigations into origins

There is not much that Jan Goward does not grow in her small Eastbourne garden. I grow everything," she says. I've got the exotics: the aubergines, the chillies ..."

But some mystery seeds she received in the post this week - ostensibly from Singapore, and marked as stud earrings - will not be joining them.