The way i have seen it - there has been a LONG standing "gentlemens'" agreement between the Corsairs and the IMG to "look the other way".
Practically speaking this has meant that Corsair and IMG ships have been able to dock on each other's bases, it has also meant that (some) corsairs have ignored IMG miners in Omega 49.
Added to this there is the long standing diplomacy between the CR and the Corsairs.
However, since there seems to be such dissention and opinion about it, this one should probably be referred ti Admin discussion and as such we'll get back to you all shortly......