RHI inquiry - @SJAMcBride reflects on the revelations from the first week of the public inquiry

The public inquiry into a flawed green energy scheme which contributed to the collapse of devolution kicked off on Tuesday. Retired appeal court judge Sir Patrick Coghlin opened the RHI inquiry at Stormont. In the coming months it will hear from many, including former First Minister Arlene Foster. Stephen spoke to journalist Sam McBride, he's been following the inquiry.