UK TV · BBC iPlayer
Expert Witness: all seasons, episodes and where it airs in the UK
Quick answer · UK
Expert Witness is a UK documentary series from BBC iPlayer, running since 2021, with 5 seasons and 65 episodes.
Expert Witness is still running; the latest episode aired on Monday, July 6, 2026.
Expert Witness seasons (5 seasons, 65 episodes)
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 15 | October 25, 2021 | November 12, 2021 |
| Season 2 | 15 | November 14, 2022 | November 14, 2022 |
| Season 3 | 15 | August 21, 2023 | August 21, 2023 |
| Season 4 | 15 | October 28, 2024 | October 28, 2024 |
| Season 5 | 5 | July 6, 2026 | July 6, 2026 |
Original UK air dates on BBC iPlayer.
Common questions
How many seasons of Expert Witness are there?
Expert Witness has 5 seasons and 65 episodes, first airing on Monday, October 25, 2021.
Is Expert Witness still on?
Expert Witness is still running; the latest episode aired on Monday, July 6, 2026.
What channel is Expert Witness on in the UK?
Expert Witness airs on BBC iPlayer, a streaming service.
Who stars in Expert Witness?
The main cast includes Ashley John-Baptiste.
Source: TVmaze (CC BY-SA), retrieved October 7, 2026.