Sooner has it right.
From the Regs.
Rules for all Partners – A designated partner does not need any priority to qualify for a partner licence, does not need to have applied on the draw, and the purchase of the partner licence will not affect any existing priority of the partner. The intended partner must be eligible to hold a hunting licence. See below for information regarding licence combinations and restrictions. The primary licensee may designate a partner at any time until the end of the season for which the Special Licence is valid. The designated partner hunts under the authority of the special licence and must be in direct communication (not including the use of any electronic devices) with the primary special licence holder while hunting to ensure that both stop hunting once the tag(s) are filled. The two hunters hunt as one.
The primary licensee must carry the tag(s) issued with the special licence and must tag the animal as soon as there is a kill. The primary licensee may hunt without the partner, but not vice versa.