Die Polizei begann eine intensive Spurensuche am Tatort.

The police began an intensive search for clues at the crime scene.

Die Polizei begann sofort mit der Spurensuche am Tatort.

The police immediately began looking for clues at the crime scene.

Das Buch ist eine spannende Spurensuche in der Vergangenheit.

The book is an exciting search for traces of the past.