and here is your answer, as I googled it
"Yes, the families affected in the Channel 5 factual drama Power: The Downfall of Huw Edwards—which stars Martin Clunes—were consulted during its production, according to the broadcaster.
According to Channel 5, the two-part drama was created with input from key individuals involved in the case. Key aspects of the production include:
Family Input: The series was based on interviews with the victim, their family, and journalists, with details on the online pursuit provided to writer Mark Burt by the victim's family.
Victim Consent: Executive producer Samantha Anstiss confirmed the victim, referred to as "Ryan," was interviewed extensively and supported the project, feeling it was the right time to tell their story.
Conflict with Edwards: While Huw Edwards criticized the production for not checking facts with him, Channel 5 maintained the drama was produced in line with Ofcom's code and that allegations were put to him via solicitors prior to broadcast.
BBC"