(someone) pick up the scent

Translations
(кто-то) взял след
The detective managed to pick up the scent and was on the right track.
Детектив взял след и был на правильном пути.
Definitions
To begin to detect, notice, or become aware of something, often a clue or trail, especially in the context of searching or investigating.
Words
someone

pronoun
кто-то
pick

verb
уловить
up

adverb
вверх
the

article or possessive pronoun
этот
scent

noun
след