Source: BBC News
Emma Dellaway, 25, from south London, likes to know that the money sitting in her current account is not doing harm.
"I don't have much money, as I am just starting out on my career, but what I do have should not be used unethically," she says.
"I hate to think of arms going to some African country funded, however indirectly, from my account."
Ms Dellaway took an unusual step to follow through her ethical beliefs.
She opened an Islamic current account.