Angus Stewart discredited that '300' figure.
The WT merely scanned their files for the word "police" and conveniently assumed the police had been involved each time that word was found.
Angus said that the word "police" may have been used in a sentence such as "police were not informed", but the WT counted this as an incident where the police were informed, simply because the word 'police' was used.
If any were reported to the police, then the WT's own records (linked to in the OP) show that this was not done by the JW's in any single instance.
This is a perfect example of Theocratic Warfare being used. Another term for Deception.