The officer has very good notes---but they ARE hard to read due to their penmanship. However, they clocked you at 70km but reduced it to 65km in a 50km zone. In other words, he/she reduced it to an offense with no points and a lesser fine. There are no glaring errors in the officer's notes. In fact, given the detailed checklist the officer provides, I suspect his/her testimony will actually be quite good given such detailed notes. After all, his/her recollection will undoubtedly be quite refreshed from such notes. As such, its quite likely the JP will believe the officer's testimony.
Still, if you are intent in going to trial, you could try to cross-examine the officer on why he didn't provide your ID info in his notes (and whether he can recall what you were wearing, your Driver's license number, any communication exchanged, whether he lost sight of you, admissions made, etc.). However, the reality is that those are not critical----and the JP will probably be satisfied with the officer's testimony that he recalls assessing those things at the roadside and would only make a notation if anything was awry.