Hello again,
thx for some good ideas. i startet to script Freya's approache via llRegionSay. I inserted some lines code in order the attachment is talking ((llRegionSay )) the Owners UUID in a non zero channel. A central cube will recieve this message an store it in a list. A timer inside the cube is checking against AgentInRegion. If an Agent in Region without this storred message he is identivied as Avatar without this needed attachment.
Tahnks all !!!