From the blog "Slavers Of Skyrim Devlopment Blog"

This story starts early stage of devlopment...   When the basic architecture and how this mod going to work changed a lot... weakly some times dayli basis. one thing known for sure:   Capture magic effect going to be used to capture player, player follower and npcs.   This magic effect need a script to control and execute the capture event, so i needed write the script: SLOSMagicCaptureEffectScript   This one at first is simple and done only few thing