What Scientist meant by his comment that he had nothing to do with the Kingdom releases is open to interpretation for sure. But let's look at these albums.
Scientist on the Kingdom label
1981 - In The Kingdom Of Dub
1982 - High Priest Of Dub
1983 - Dub Duel At King Tubby's
1983 - The People's Choice
1984 - Crucial Cuts Vol 1
1984 - Crucial Cuts Vol 2
1987 - King Of Dub
All in all we're taking about 37 Dubs here. There have been no 'new' releases since 1983 and nothing after 1987. King Of Dub, Crucial Cuts Volume 1 & 2 are all re-hashes of the same tracks from previous albums. The Professor takes half the tracks of Dub Duel At King Tubby's. So we're talking about three and a half albums. In The Kingdom Of Dub, High Priest Of Dub, The People's Choice and half of Dub Duel.
In The Kingdom Of Dub
Tracks 1 & 2 are the same with slightly different mixes
Tracks 3, 6 & 7 are pretty good Dubs in my opinion. Do I think this is Scientists work? No, a few of them might be. Listen to the Vampires album released in the same year.
High Priest Of Dub (LP not the CD)
This is a nice album, great Dubbing all round. Do I think this is Scientists work? Yes. He certainly mixed many of the tracks the Dubs were created from - The Royals and The Gaylads (?).
Dub Duel At King Tubby's - Scientist V The Professor
Track 4 sounds like Scientists work. Tracks 7 & 9 are neat. I always liked the Turn Corn Meal And Flour track, one of the great Dubs, but it also turns up on the fake Prince Far I release Megabit 25, 1922-Dub as a track called Itege.
Do I think this is Scientists work? No, a couple of tracks might be. Looks like a cash-in on the Dub craze of the period.
The People's Choice
Track 1 is a Prince Far I rhythm. Nice Dubbing all round and probably Tubby's in origin. Do I think this is Scientists work? Possibly, many of the tracks sound genuine enough to my ears but just how many were actually mixed by him will probably never be known.
My 2 cents
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Rootsman
I've seen your argument elsewhere on this forum. Whatever Overton Brown thought about the situation would have been put into perspective with the assassination of King Tubby, and as there were no 'new' releases after 1983 the problem sorted itself. Blood sucking lawyers are a real last resort in my world and probably in the young Overton Brown's as well. Plus, Dubs and who owns copyright to the work of a mixing engineer is a very grey area but one which will almost always, in court, be credited to the copyright holder of the original music, as we have seen in the recent past. Even though that copyright holder never wrote a word of music, never created any lyrics nor sweated at a mixing desk for weeks on end to produce innovative Dubs that changed the course of musical history. We here, at least, know where the real credit lies as far as Dubbing goes

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All hail the King of Dub!