The PJ decided the witness had seen another holisaymaker, but the witness wasn't ask to confirm it. The holidaymaker didn't have dreadlocks.
I think you are missing the point that in 2020 Amaral launched himself on the Portuguese print media and television complete with mocked up photographs which he purported illustrated the appearance of the suspect in a heinous crime at the time the crime was committed.
This is indisputable.
A short time later a video emerged of the actual suspect at the actual time prior to the crime taking place.
This is also indisputable.
If it is your contention that the PJ messed up with regard to the witness in 2007 - that is fine as it remains on topic with Amaral being the co-ordinator at the time with the remit of ensuring that slip ups such as you describe didn't happen.
Maybe that is why the 'dreadlocks' stuck in his mind.
I'm not sure exactly what you are trying to do with your last couple of posts in this vein; I know it can be nothing to do with the deliberately misleading misinformation fed to the Portuguese media by Amaral; which for the third time of saying - is indisputable.