I worked as a civvy in our force Ops Room...we took all calls....101 and 999 and logged/managed/passed on/advised as necessary.
In my home town we have a long established site with many families having been there for decades. The older families tended to be OK. The problems seemed to occur with visitors/younger members. We had liaison officers who tended to deal with issues re the site and in general things were OK.
however, in many areas we covered ( approx. 2/3 of Wales and largely rural)things were different. Illegal encroachment onto land with local increases in crimes. One problem was with travellers making cold calls in their vans to remote properties like farms. Ostensibly offering goods for sale...generators/Stihl saws (usually fakes). Often this was an excuse to case the property. Farmers reported the van occupants taking liberties to walk round looking at the site.
The farmers were setting up local networks to warn each other/report incidents/vehicle details etc. The only real way due to the rural nature we covered.
Builth Wells had annual problems during Show times....fields being taken over etc..
There is much more but I will leave it there.