The notes made by police officers should be taken on their merits, something has to be written down in writing, for one very important reason, they were written as events unfolded , in other words what you see is a first generation draught copy of running events made in real time , everyone makes mistakes , no human can exist without doing so, likewise the police you can add on that list, a notepad with notes is one thing a full account after thinking via a statement is another, the log entries are there to question do not take them as 100% factual.