Pc West's log effectively supported Jeremy, but Jeremy and his defence team didn't realize the full significance of it at his trial. We can now see that whereas Pc West wrote down "age 27" for Sheila that Jeremy had told him was Sheila's age, Bonnett (who was called by Pc West) wrote "aged 26 yrs". This was consistent with Bonnett having had another source - Nevill Bamber.
His log doesn't support Jeremy at all. You keep posting extremely xxxxxx things. Ther eis nothing at all in West's log that suggests he had a source other than Jeremy. Nor does Bonnett's log suggest West told Bonnett he had a source other than Jeremy.
West wrote down that Jeremy told him Sheila's age was 26. Bonnett wrote down that West told him that Jeremy said his sister's age was 27. Both sources attribute the information to Jeremy. Neither suggests the information came from someone else. To a reasonably intelligent person all this proves is that either:
A) West accidentally told Bonnett a different age than he wrote down
or
B) Bonnett accidentally wrote down a different age than West told him because he misheard or some other reason.
That's all it proves to someone who is honest and reasonably intelligent.