Hannes
There does not appear to be text in draft-ietf-geopriv-policy-25.txt that addresses the impact of location obfuscation on the emergency services use case. Specifically, there may be a desire to obscure or lie about location to protect privacy in some or most cases. But in the emergency case, it is in the best interests of the location target, and there may be a legal obligation in some jurisdictions, to use the most accurate location information available.
Parameters in the location object describing its use (e.g. retransmission allowed) can be ignored if appropriate for an emergency call, but nothing can be done to the location information itself once the object is created. It would be useful to clarify in this document the impact of a rule to deliberately obscure location when a location object is created would have on the emergency services use case and to describe how it is possible to make sure a location object contains accurate location information for an emergency call.
Thanks
Eric Arolick