Under the Trespass to Property Act (TPA), what is the primary power a security guard has when an individual is found trespassing on private property and refuses to leave after being directed to do so?

1. To detain the person indefinitely until police arrive, regardless of the time taken.
2. To seize personal belongings of the trespasser as collateral.
3. To arrest the person without warrant.
4. To fine the person on behalf of the property owner.