There are multiple definitions - click on the translation that matches your context.
search means:
Ermittlungsuntersuchung means:
Substantiv
partial
noun
This English word will generally suffice in most contexts, but it may be too broad if the text seeks to convey the type of search it is - search for a suspect (Ergreifungsdurchsuchung) as opposed to the search for evidence, which is the case here.
the act of examining a place, person, or thing carefully to try to find something
Police carried out a search of the suspect's house at around 2am this morning.