A Binding Field Spell was a spell that would contain the target - and his/her powers in case of magical targets - within an energy field. The caster employed the latin word "Vincire" and a green energy ring would emerge from his/her hand and be projected in a straight line.
The victim was also rendered temporarily in stasis after a matter of seconds. Even if the target managed to regain conscience, he/she would still be unable to speak or perform magic. However, powerful enough prisoners would still be able to project his/her thoughts.