Police station Cartagena

Does anyone know  the postal,address of the main Police station in Cartagena, where you go to get your NIE , sign on the Foreigners register etc

From Google it appears to be :-

Menéndez y Pelayo, 6

Cartagena, Spain

Thankyou, there are more than one, and I want the one where you sign on/deregister from the foreign citizens register

Is this the one?

Yes, that's the one.

If you're coming from Mazarron on the wide, main road, you pass a big Carrefour on your left and then come to a big roundabout. The police station is just over that roundabout. There is an underground car park on the right and it's about a 2 minute walk from there. The foreigner's office is through the main door and at the back of the building.

Thanks, everyone

It is on Plaza de Espana, the large roundabout at the top of Paseo Alfonso XIII. Sorry I cannot remember exactly where on the roundabout but you should be able to find it easily. We managed  it when they moved from the old office a few years ago.