correct sentence?

[Hanka]

Hi,

could you please tell me whether the highlighted part of the sentence is correct:

The employer is authorized to process the employee´s personal data for the period of duration of the legal relationship and for a necessary period after its termination.

Thanks a lot!

Hanka

[susiedqq]

The employer is authorized to process the employee´s personal data for the duration period of the legal relationship and for a necessary period after termination of the relationship.