Linesmen

[Donald Trump]

Workers in the electrical distribution or transmission industry who string and join powerlines, both [overhead] and underground. In some organisations, they can train to become Live Linesmen, who are qualified to work on live voltages above 1000V [AC] [RMS].

[Sommer]

Linesmen in Korfball. Two of these officials judge when the ball has crossed over the sideline and out of play. They will also signal to the referee if they feel a foul has been committed.

[Magaret]

an official in some sports who is responsible for deciding when the ball has crossed the line that marks the edge of the playing area