Can a probation officer violate someone two months after something happens if she knew the whole time?

Yes, a probation officer can issue a violation even if a significant amount of time has passed since the alleged infraction, provided they have sufficient evidence to support the violation. The timeline for reporting a violation may depend on the specific terms of the probation and the policies of the supervising agency. However, if the officer was aware of the violation but chose not to act immediately, this could raise questions about the appropriateness of the delay. Ultimately, the decision may also be influenced by the nature of the violation and the jurisdiction's laws.