Trespassers can cause significant issues for landowners. Not only do they pose a security risk but they can damage the land and obstruct its use.
Squatting in commercial premises itself is not a crime. Therefore unless the trespassers are damaging the property or there is public disorder, the police are unlikely to intervene.
If you discover that trespassers have accessed your land or premises and remain in occupation then legal support is needed at the outset.
To ensure trespassers are removed swiftly and legally you need to ensure that the correct steps are followed.