Make the sentence grammatical: Not only that, if indeed that a crime happened, the prison guards will be able to investigate and know who is the culprit.
The police are not able to find the culprit.
The sentence is correct.
The sentence is not correct.
The sentence is not correct.
The sentence is correct.
The sentence is not correct.
The sentence is not correct.
The sentence is correct.
The sentence is not correct.
The sentence is correct.
The sentence is not correct.
The sentence is not correct.
The sentence is correct.
The sentence is not correct.
The sentence is
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The police have a duty to investigate the crime.
The