From Hawaii Police Dept.:
The Puna police station in Pahoa remains open and police have no plans to close it. A misleading news report wrongly implied that the Pahoa station was no longer occupied.
If and when lava blocks access to the Puna station to residents of lower Puna, police will set up a secondary location somewhere on the south side of the lava flow. That location has yet to be finalized. Police will continue to patrol all occupied areas of the Puna District.