Working with the police by advising about the fox cull is good practice, if someone or the nosey neighbour rings in to say there is a person lurking in a garden at midnight, saves a great deal of work for the police, the report is enough that they have to send someone to investigate, a phone call to you prior to coming out will certainly calm the nerves a bit for them.
The other side of the coin is causing stress and inconvenience to a third party through covert actions, noise and someone having to watch the dispatch of the foxes, through no fault of their own, now that can open a can of worms on its own.
police cad number, risk assessment prior to the event, planning on kill area away from prying eyes, advising strictly on a need to know basis is all good practice, the answer is to minimise any risk and including third party shock waves best as possible.
some area forces have conditions for FAC sect 1 to dispatch foxes using .22 rimmy, check before ye go
at the end of the day, the person who squeezes the trigger is responsible, if you care not to care, and if you have the police in attendance for whatever reason, there is only one person to arrest. You
Every job I attend gets a pre removal inspection during the daylight hours, if safe to do so, I do my utmost to minimise any risk and try to keep disturbance to a minimum, create a cad number and close it down when finished.
as like any other risk laden job "due diligence " is the popular word
the 6 p's are best , "proper planning prevents p#*s poor performance "
phil