How safe are our spices?

We have learnt from the newspapers that Pran's turmeric powder is not good for health due to its high degree of lead content. From now on, we can stop using Pran's turmeric powder but what about the other brands of spices? Are they free from poisonous substances? BSTI should test all brands of spices, publish the test results and punish the unscrupulous companies for marketing poisonous spices. We want to live a healthy life and don't want to give them any chance to feed us with poison.
Abu Jar Gifari
On e-mail