I'm puzzled about this:
The US admits some of civilian killing and categoricaly rejects other claims.
Why would afghan tribal leader and local police lie?
ISAF has thoroughly investigated and rejects claims that ISAF forces killed more than 50 civilians in the Shindand area.
Our extensive investigation reveals that the closest airstrikes carried out were 13 km to the South East of these villages. ISAF therefore rejects these claims as baseless.
...
The raid was against "high priority Taliban targets" and that two "Taliban leaders" and a "significant number of insurgents" were also killed. There was no evidence of any civilian casualties.
source