What can I do to ensure that freelancers don't later recreate my tasks?

[Btaliat]

Clients need to be worried, especially the one that doesn't have copyright with the tasks that they do. When freelancers finish a particular task with you, I hope you know that there are other copies with them. In order to ensure that this is not really an issue that gets to you, make use that you have the right contract signed. This will protect you from getting your tasks recreated by the freelancers.