Based in a true stroy info and explanation

Richard Osman a UK TV producer recently discussed this on a podcast but I unfortunately can't find the clip. In it he discusses with other industry insiders the inner workings of uk TV including this disclaimer. Now I may not be remembering theis exactly right.

"This is a true story" the writer is directly telling an autobiographical story with the sign of and permission of the people involved.

"Based on a true story" the story is written by someone involved with names or location changed.

"Based on true events" most of this can be corroborated by media or press but some scenes are imagined for narrative purposes.

Although this isn't a hard and fast rule and diffrent phrases may be used how direct the phrasinging is indicates the level of "authenticity" of truthfulness of the story telling. I did find an article written by a difrent producer which also sums up the same sentiment.

" “Inspired by” means that it’s based on a real-life event, but that a lot of the characters and scenes surrounding it are fictionalized. You may want to use “inspired by” if you’ve changed the story so much that it’s basically just an essence of the original story. “Based on a true story” is more of an accurate accounting of the story, though there’s probably some dramatic license taken. “Based on firsthand accounts” of actual events is a story told about the same event from a variety of people. Because everyone’s perspective can be different, you hope you can get to the truth by listening to them all and putting it together in the way you think it might have occurred. "

Source.. https://www.filmindependent.org/blog/avoiding-the-pitfalls-of-adapting-stories-based-on-real-life-with-rona-edwards/#:~:text=%E2%80%9CBased%20on%20a%20true%20story%E2%80%9D%20is%20more%20of%20an%20accurate,from%20a%20variety%20of%20people.

Just incase anyone was interested as I happen to watch the clip of them talking about this recently.