Dhaka Metropolitan Police is preparing a list of those selling formalin, a hazardous chemical used to preserve food, as part of its drive against adulteration.Bangladesh imports the chemical far in excess of its actual demand, DMP Joint Commissioner Monirul Islam told the media on Thursday.“We have to find out how traders are importing this, and who are they selling it to.” Detectives have already gathered useful information on the matter. “Police will talk to businesspersons to find out why so much of formalin is coming into the country,” said the official. –bdnews24.com