Ganson's decision infuriated Bulls coach Steve McNamara

Referees will have to stand side-on to a kicker in order to check for offside during a penalty or conversion attempt.

Jordan Tansey scored a match-winning try for Leeds against Bradford after a late penalty kick hit the bar.

Replays showed Tansey was in front of the kicker, and therefore offside but referee Steve Ganson allowed the try.

Ganson did not refer the touchdown - which gave Leeds a thrilling 42-38 win at the Millennium Magic weekend - to the video official, sparking a furious response from Bradford.

Coach Steve McNamara claimed his side had been "cheated" of victory, and the Bulls unsuccessfully tried to get Leeds to voluntarily hand over the two league points awarded for the win.

We will make modifications to existing on-field policies if we feel there is a need for improvement RFL match officials director Stuart Cummings

Ganson later admitted he had made a mistake and apologised to Bradford.

The new Rugby Football League (RFL) directive will instruct referees to move behind the kicker as the ball is kicked in order to have a good view of its flight towards the posts.

"We have a policy of continuous improvement and all matches are analysed in detail after each week of competition," said RFL match officials director Stuart Cummings.

"We will make modifications and amendments to existing on-field policies if we feel there is a need for improvement and we feel there is a definite benefit in this case."