Mr. Martin Callinan:

This is particularly difficulty issue to quantify. Groups, by their nature and depending on the level of enterprise, have different numbers. If the gang is involved in drug importation or distribution, firearms or another illicit activity, it may merge and diversify with other groups. It is particularly difficult to quantify. Within these cores there may be six to 12 people. Beyond that in certain cases there are substantial numbers operating within the groups.