If you are applying for a Seconded post in United Nations Police (non-contracted, temporary post), you will have to complete the Eletronic Application for Seconded Police (EASP).

Previously, for UNPOLS, the document was the Personal History Profile, also known as P11-form, or simply P11.
This document is still used for other types of applications in U.N. and in some missions.

It is the responsibilty of the Member State (your country) to provide you the EASP.

To check the document, you can also download it here, in the end of the page.

If you have never seen the document, please take one look in this example of filled form: