Tras un análisis detenido del sitio, los arqueólogos concluyeron que el objeto es del neolítico.Following a detailed analysis of the site, the archeologists concluded that the object dates from the Neolithic.

b. thorough

Un examen detenido de la habitación reveló pistas nuevas a la policía.A thorough examination of the room gave the police some new leads.

c. careful

Una revisión detenida de la placa madre indicó que no estaba quemada como pensaban.A careful check of the motherboard showed that it wasn't burnt out as they had thought.

2. (detained)

a. under arrest

Queda usted detenido por un delito contra la salud pública.You are under arrest for an offense against public health.

b. in custody

Marisol quedó detenida durante 48 horas antes de recuperar la libertad.Marisol remained in custody for 48 hours before being released.

c. arrested

Los adolescentes detenidos no sabían que tenían el derecho de llamar a un abogado.The arrested teenagers didn't know they were entitled to call a lawyer.

3. (at a standstill)

a. held up

El tráfico llevaba detenido una hora debido a las obras.The traffic was held up for an hour because of roadwork.

This means that the noun can be masculine or feminine, depending on the gender of person it refers to (e.g. el doctor, la doctora).

masculine or feminine noun

4. (person held in custody)

a. person under arrest

Los tres detenidos pasaron la noche en una celda.The three people under arrest spent the night in a cell.

b. detainee (especially for political reasons)

El detenido se negó a hablar sin la presencia de su abogado.The detainee refused to say anything without his attorney being present.

c. prisoner (person already convicted)

El detenido fue puesto en libertad tras un segundo juicio.The prisioner was released after a second trial.