"I get involved if a problem comes up after the death has been investigated by the local authority"

Michael Baden's quote suggests that he wants to get associated with a circumstance if an issue develops after a death has been examined by the local authority. This might mean that he wants to offer extra insight or proficiency to the investigation if the local authority has actually not been able to discover all the realities. It might also mean that he wants to offer a second opinion if the regional authority's findings are challenged. In either case, it is clear that Baden is willing to action in and offer support if required. This could be a valuable asset to any examination, as his experience and proficiency could assist to discover the truth and provide closure to those impacted by the death.