Both, as data should be accessible on any level that they are.
And how difficult is data collection can be an indexing criteria.
For example, in Ukraine we have State Pre-court Crime Investigation Register where all registered crimes are. We can’t get data in a bulk directly from it, but we can get them by parts from a regional internal affairs headquarters.
Yes, privacy is an important aspect to debate.
But only some cases can be considered as harmful.
I can name crimes on sexual basis, against children or some intrafamily crimes committed in a private houses.
As I work in this area I have several solutions for those cases:
- Adaptable locality level: set limit for address details to street/block level;
- Use regular grid of coordinates to place crimes.
But take to account that absence of detailed crimes location data looks much more harmful for society.