The Rider Who Wouldn't Register
You are on the vehicle gate at a private residential estate in Tseung Kwan O - eight blocks, 1,600 units, one entrance. At 22:50 a food-delivery rider on a motorcycle refuses to give his name and Hong Kong identity card number for the visitor log, saying the Personal Data (Privacy) Ordinance means he does not have to. He rides past the raised barrier; as the arm comes down it clips his shoulder. He stops, gets off and pushes you hard in the chest. Your colleague, who received his SPP three weeks ago, grabs the rider's backpack strap from behind and pulls; the rider falls, grazing his elbow and smashing his phone. He gets up, starts filming you both on a second phone and says he will post the video online. The resident he is delivering to comes down and says 'just let him in, it's my dinner.' The barrier arm has a dent.
1. Was the rider a trespasser, and what force could you lawfully use to keep him out or remove him?
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Trespass. The estate is private property. Entry is permitted on the occupier's terms, and registration is one of those terms. A person who enters contrary to those terms - or who stays after being told to leave - is a trespasser. The resident's permission covers the delivery to that resident, not a licence to ignore gate procedure, although the resident can authorise entry to the common parts for that purpose.
Force available. You may use reasonable force to prevent entry or to eject a trespasser; you have no power to detain, search or punish. 'Reasonable' means the minimum needed, proportionate to the threat, and it shrinks as the threat shrinks. A motorcycle versus a barrier arm is a bad match: lowering or holding the arm against a moving vehicle is a trap that can injure the rider, damage the bike and escalate a registration argument into an injury claim. The correct move is to step back, let the arm stay up or open it fully, note the plate and time, and deal with the person on foot.
The push. A push is a battery. If it causes no injury it is common assault, which is a summary offence carrying 1 year and is therefore not arrestable. If it caused injury, assault occasioning actual bodily harm (3 years) would be arrestable. On these facts the push alone probably does not give you an arrest power - calling police is the right response, not a citizen's arrest.
2. Is the rider right about the Personal Data (Privacy) Ordinance? What may you collect and what may you not do with it?
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He is half right, and the half he is wrong about does not help him.
The estate is a data user. A visitor's name and identity document number, recorded in a log, are personal data, so the Data Protection Principles in Cap. 486 apply to you.
- DPP1 requires collection to be for a lawful purpose directly related to a function of the estate, adequate but not excessive. Access control for a 1,600-unit estate is a legitimate function; a name, partial ID (often the first few characters) and time in/out is proportionate. Photocopying the whole card or keeping it beyond the visit is excessive.
- DPP1(3) requires you to tell him, at the point of collection, that he must provide the data and what happens if he does not. That notice should be on a Personal Information Collection Statement at the gate. If it is not there, fix that - it is a real compliance gap, not a debating point.
- DPP2 requires accuracy and a retention limit: visitor logs should be cleared on a defined cycle, not kept indefinitely.
- DPP4 requires the log to be kept securely - not left open on a counter for the next visitor to read.
What is wrong is the remedy. He cannot consent his way past a condition of entry, and the estate can refuse entry. But refusing entry is done by words and, at most, minimal physical blocking - not by force against a moving vehicle. His privacy rights are irrelevant to whether you may clip him with a barrier arm.
3. Deal with your colleague's grab, the broken phone, the filming and the injury. What do you do in the next hour, and what do you avoid?
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The grab was the mistake. Pulling a strap from behind makes the person fall backwards; it is a high-risk technique chosen in a low-risk moment. The graze and the broken phone are the direct result. Do not repeat it, do not defend it in front of the rider, and do not discuss liability with him.
Filming. He is entitled to film in a place he is lawfully present. Do not grab the phone, do not demand deletion, do not put a hand over the lens. Seizing or deleting footage would be a further offence and would guarantee the video gets posted. Stand at a normal distance, stay calm, do not make threats about his employer, and let the recording show you behaving professionally.
Injury. Offer first aid for the graze; if he declines, record the offer and the refusal. Never press him to sign anything.
In the next hour: tell your control room and supervisor immediately; report the assault and the damage to police and give the rider the report reference; get the resident's details as a witness; preserve the gate CCTV before it overwrites; photograph the dented arm with a timestamp; and write your own statement separately - identical statements from two guards destroy credibility.
Avoid: apologising in a way that admits liability, offering cash for the phone, letting the resident 'sort it out', and letting your new colleague write his account after hearing yours.