This is the 15543rd most frequent Russian word.
преступлении
"Crime" or "offense."
The word 'преступлении' here refers to an unlawful act someone is suspected of committing.
Он подозревается в преступлении.
He is suspected of a crime.
The word 'преступлении' in this context denotes a specific crime that has taken place.
Много информации о преступлении было скрыто.
A lot of information about the crime was concealed.
Here, 'преступлении' indicates the crime that the investigation is focused on.