This is a case where Contractor is already paying bribe to company employees to expedite work from them. Contractor complained to Works Manager only when the demands of employees increased and employees are caught red handed accepting bribe by laying trap.
Since Contractor himself has accepted and informed Works Manager that he has been giving bribes earlier also, he is also at fault.
Now Can of Worms is opened and this whole arrangement of Contractors, Transportation and Loading / Unloading needs to be thoroughly investigated in detail to find out the extent of rot in a system and to find out involvement of others in giving and accepting bribe. It is quite possible that even few more people at Supervisor and Manager level are also involved in accepting bribe.
It is also clear that there are no proper Control Mechanisms set by Management hence employees are accepting bribes and by accepting bribes compromising on companies interests and image.
There also seems to be a lack of transparency and trust between the dealings of Contractor and Company, otherwise Contractor would not have paid bribes in first place and would have complained at the very first instance of such demand.
Firstly Contractor and employees involved in giving and accepting bribes should be suspended with immediate effect, pending enquiry.
Management to revisit and review the entire process of Contractors, Transportation and Loading / Unloading to make it transparent, efficient and full proof with adequate controls.
All above actions needs to be taken very quickly to emphasize the Managements view and philosophy of not tolerating corruption and to send a message that anybody involved in corruption will be dealt very seriously.
Your views and comments are welcomed.
Thanks & Regards