Allegations
that pharmaceutical giant GlaxoSmithKline (GSK) systematically bribed
doctors in China are credible, says an investigator hired by the
firm.
Peter
Humphrey was hired only to investigate who was behind a suspected
smear campaign against GSK.
But
after he finished his report, he learned the details of further
allegations against the firm and told colleagues he believed they
were true.
GSK
told the BBC it did not tolerate corruption in its business.
"We
have many policies, procedures and controls in place to monitor this
and take action against any