If one of your dogs had bitten the Evri driver, you would likely be facing severe criminal liability as well as civil compensation claims under UK law.
Many owners assume warning signs or double gates create a complete legal shield, but under English and Welsh law, warning signs do not exempt an owner from legal responsibility when a delivery driver enters private land.
1. Criminal Liability (Dangerous Dogs Act 1991)
Under Section 3 of the Dangerous Dogs Act, it is a criminal offence to allow a dog to be "dangerously out of control" in any place in England and Wales—including private property (your yard, drive, or fields).
The Delivery Driver Exemption: The law includes a specific "householder defence" that protects owners if a dog bites a trespasser inside a dwelling. However, delivery drivers, postal workers, and utility meters readers have implied license (legal right) to enter a property to deliver goods.
Why the sign doesn't clear you: Legally, an implied license to enter exists unless it is physically prevented (e.g., a locked gate with a drop-box/intercom at the boundary). A driver entering through an unlocked gate to make a requested delivery is not considered a criminal trespasser in the eyes of the court.
Potential Penalties: If a dog bites someone who has a right to be on the land, the police can prosecute the owner/person in charge.
Penalties include an unlimited fine, up to 5 years in prison (for an attack causing injury), and a mandatory destruction order for the dog unless you can prove it is not a danger to the public.
2. The "Beware of Dog" Sign Trap
In both criminal and civil proceedings, putting up a sign that says "Do Not Enter - Dogs Running Free" can actually be used by the prosecution or a claimant to demonstrate knowledge. Under the Animals Act 1971, showing that you knew your dogs had a propensity to act aggressively or guard territory when loose makes strict liability much easier to establish in court.
3. Civil Liability (Occupiers' Liability Act 1957 & Personal Injury)
The injured driver could sue you for damages (medical costs, loss of earnings, trauma).
How to Protect Yourself and Your Dogs Going Forward
Because drivers often work under severe time pressures and ignore written notices, physical barriers are the only legal protection:
Lock the Outer Gate: Keep the outer gate at the boundary locked so physical entry is impossible.
Boundary Parcel Box: Install a heavy-duty parcel box and letterbox at the perimeter gate, paired with a sign instructing: "All Deliveries Leave in Box Here – Do Not Enter."
Delivery Instructions: Update your delivery accounts (Evri, Amazon, Royal Mail) with explicit delivery notes to leave parcels in the external box at the main gate.