The word "spotters" is correct and usable in written English.
You can use it to refer to people who are assigned to watch for something or someone specific for security or safety reasons. For example, "The security guards hired spotters to watch for suspicious activity in the area."
Spotters on both sides update smugglers on the movements of law enforcement and rafts of families are dispatched to distract the border patrol so drugs can be moved across in unguarded places a little further along the river.
Yet it could be that Ghost Train spotters are living through a golden age: as not only have Told By An Idiot embarked on a radical revision at the Royal Exchange theatre, Manchester, there is an old-school staging by Talking Scarlet steaming round the country with a cast led by Hi-de-Hi! star Jeffrey Holland.
Spotters' badges: chestnut52, GrahamClayton, BlackCaeser.
Special-forces "spotters", used on the ground in Afghanistan to pass on the co-ordinates of targets to pilots, will be deployed again.Among the first targets will be Iraq's residual air defences, plus command-and-control and communications facilities.
Alongside the Europeans and Arabs, he should send trainers, spotters, logistical and telecoms support to bolster the rebels, as the UN resolution allows him to do.
And there have been persistent reports that the mistaken bombing of one Afghan convoy, which killed a large group of Afghan elders, was initiated by Bacha Khan, a local warlord who falsely identified them to American spotters as Taliban.
Such revisions are usually of interest only to nerdy data-spotters but these broke records.
A rising chorus of foam-spotters believes so.
For industry trend-spotters wishing to read the runes, the Chrysler stand at this year's Geneva Motor Show was, quite literally, a shattering experience.
As well as winning back those butterfly-spotters, Mr Caro wants to attract more visitors in the summer, when the monarchs are away and local restaurants and petrol stations see little custom.
Targeting data will be provided by telescopic cameras on the aircraft, by pictures from satellites and unmanned aerial drones, and by human target-spotters on the ground.
