Search Results depending on Permissions (EDIT, VIEW…) on items. Is it possible?

Hello,

I have an Intranet with multiple site collections and sites / sub-sites.

The users have different permissions on these sites (View or Edit).

I want to create a page with webparts (search results webpart) which display only the items where the current user has EDIT permission.

I look for some information about ISecurityTrimmerPost but if I implement CheckAccess method, my customization will be applied for all search result webparts.

I need to use sometimes classical search (if I have VIEW access I see the item in result) and sometimes search depending on Permissions.

Somebody has already done a solution for this ? Or just some suggestions ?

Thank you for your help

Fabien