- a bystander helped him to his feet un transeúnte or alguien que estaba allí lo ayudó a levantarse they opened fire, killing innocent bystanders abrieron fuego y mataron a varias personas inocentes or a varios transeúntes bystanders looked on in amazement quienes estaban allí or [formal] los circunstantes miraban asombrados
Here is a selection of useful words and phrases you will need in real-life situations while you're visiting Spain and other Spanish-speaking countries...
The Basque autonomous police force is called Ertzaintza. Its members, called ertzainas, wear a uniform of red sweaters and berets, and white jackets. Despite the Ertzaintza's wide range of responsibilities, the Guardia Civil and Policía Nacional still operate in the Basque Country.