Which of the following provides grounds for a peace officer to arrest a person?

The correct choice is based on the principle that a peace officer can make an arrest if they have reasonable grounds to believe a person is about to commit an indictable offence. This belief must be based on specific facts or circumstances that lead the officer to conclude that an offence is imminent. It's not just a hunch; there needs to be some evidence or observable behavior that supports this belief.

When an officer assesses a situation, they look for signs consistent with the commission of a serious crime. This could include the actions of the individual, the context of the environment, or prior knowledge about the person’s behavior. Essentially, the focus is on preventive action to stop a crime from occurring, safeguarding the community, and upholding the law.

The other options do not provide sufficient grounds for arrest. For example, simply finding someone in a park does not indicate any criminal activity. Knowing someone’s personal background may provide context but does not constitute grounds for arrest unless that background indicates imminent criminal action. Lastly, having a witness report only suspicious behavior lacks the requisite evidence or immediate threat of an indictable offence to justify an arrest. The correct option reflects the necessity of having a tangible reason that suggests a serious crime is about to be committed, which is a key aspect of