Following disturbances before and after a match in April 1999 between Birmingham City and Wolverhampton Wanderers the Zulus were the focus of a successful police operation against them, Operation Red Card.
Setelah gangguan sebelumnya dan setelah pertandingan pada bulan April 1999 antara Birmingham City dan Wolverhampton Wanderers, Zulus menjadi fokus dari operasi polisi untuk melawan mereka, Operation Red Card.