Meanwhile , in Hong Kong , there was a possible attempt to poison John Bowring and his family in January , known as the Esing Bakery incident . However , if it was deliberate , the baker who had been charged with lacing bread with arsenic bungled the attempt by putting an excess of the poison into the dough , such that his victims vomited sufficient quantities of the poison that they had only a non-lethal dose left in their system . Criers were sent out with an alert , preventing further injury
Esing Bakery incident
Esing Bakery incident
Second Opium War