R D S wrote:
There are some scrabbling noises in the workplace, we suspect rodent
activity.

Do the plug in repellers work?


Only if you unplug them and throw them with a good aim.



One type of trap I have had reasonable success with is electronic

http://www.victorpest.co.uk/shop/rat...ectronic-traps

Neck breakers can be effective but often the buggers can take the bait
without tripping them.

A useful thing to find out where the run is if it is not obvious such as in
a loft with a lot of insulation
Is a wildlife trap camera that can work in the dark, one may help see where
they are getting access so it can be blocked and if it a mouse ( get a cat)
or a Rat ( get a Terrier).

GH