To avoid any controversy over whether a side has scored or not a system has been developed whereby balls fitted with a microchip will send a signal to the referee when they have crossed the line.

"We will definitely use the technology in Germany if the experiment works," said FIFA president Sepp Blatter, adding that a decision will be made by world football's governing body in October.

The tournament from September 16 to October 2 in Peru will host 32 matches at four venues each featuring the new technology.

"The International Board will attend that last week of the competition in Peru in order to see how the system works," said Blatter.

"This goal-line technology is enough. Football must keep its human face and must accept errors. If we start to make it too scientific this game will lose its fascination."

Meanwhile Blatter said that a Great Britain football team will be allowed to compete in the 2012 Olympics. England, Northern Ireland, Scotland and Wales would join forces for a GB team.

"We have confirmed in writing that they have to provide a Great Britain team for the 2012 Olympics," said Blatter.

"But the four British associations will not lose the rights and privileges acquired back in 1947.

"They will play with one team but it is up to them how they do it."

Blatter added: "It can be a mixed team, it can be from just one of the home nations, whatever they want to do."

The idea of a Great Britain team has met with some opposition from the Scottish Football Association (SFA).

An SFA spokesman said: "FIFA have said before that this is a matter for the British associations to decide.

"We are not currently party to any discussions on this and we have made our views entirely clear about an Olympic team. So the position has not changed as far as we are concerned."