Spain Bilbao Municipal Police sleeve patch.

Writing in Basque and Spanish languages. Udaltzaingoa - Policia Municipal = Municipal Police. With emblem for Bilbao in center triangle.
Bilbao, Vizcaya (Biscay), Basque Country.
In general, municipalities with more than 5,000 inhabitants are authorized to form a Municipal Police.
The Municipal Police falls under the command of the municipalities and has no jurisdiction other than in that municipality.
They do not have much police power.