The speed camera errors that could invalidate your DGT fine

Spain has over 3,000 speed cameras and is on the way to 4,000. It’s not surprising that speeding tickets are the top concern for many drivers.

Against that backdrop, a former Guardia Civil traffic officer – known publicly as Toribio – has set out the most common radar slip-ups he says he saw on duty, and why some penalties may not hold up if you challenge them.

These are the claims of a former officer. Each case is determined by the paperwork and evidence in the file.

What drivers can learn from speed cameras

Toribio claims that the paperwork is a major weakness. Cameras must be approved (homologación) and periodically verified/calibrated. If you don’t have the ID of the device or the proof that it is current on your ticket, he recommends asking for the certificate. He argues that missing or expired certificates are grounds for contesting the fine.

He also asks how certain mobile radars operate. According to his account, a number of devices operate fully automatically, with images sent straight to the central processing unit in León. He insists a mobile equipment supervisor should be on the scene. He says that if no officer has handled or signed the device, then this is another issue to raise.

There’s also the evidence. Toribio believes that the case file in automatically processed cases should include two photographs.
— a wide shot proving the vehicle, location and lane; and
— a separate close-up of the number plate (not just a cropped zoom from the first image).
If one of those is missing—or the plate photo is obviously a crop—he recommends appealing.

It’s important to consider the placement. He claims that fixed devices cannot be placed within 1.3 metres (quitamiedos) of a crash barricade, because the mount for the radar must not compromise the safety function of the barrier. He also criticizes tripods that are placed on the hard shoulder or, even worse, partially within a live lane. According to him, this can hinder traffic and compromise the validity of the sanctions.

Toribio also notes that certain municipalities have used clamps approved by the government to attach portable units to roadside hardware. Even with a certified mount, he says, questionable siting can be challenged—particularly where signage, visibility or safe stopping distances aren’t clear.

How to challenge a DGT speeding ticket – and the trade-off with ‘prompt payment’

Spain’s system offers 50% off if you pay early (normally within 20 calendar days of notification). Toribio believes that the discount encourages people to pay even if their files are incomplete. If you think there’s something wrong, use that same 20 day period to file written complaints instead of paying. If you pay, your right to appeal is usually lost.

What you should ask for in the event that you contest it

• The certificate must include the model, serial number and date of calibration.
• Full evidence pack – the two photos and metadata (time, location, speed limit, measured speeds, margin of error, etc.) plus the agent report if your device was not fully automatic.
• Installing or locating details on the day of the incident (especially for tripods and mobile units), as well as any temporary signage, including the exact kilometre mark.

Be polite and factual in your argumentation, and use evidence to back it up. You can appeal if you lose your initial representation. For complex cases or high-end penalties, it is wise to seek independent legal advice. Driving bans or points are examples of penalties.

More cameras, more scrutiny

With every new batch of cinemómetros the DGT’s coverage improves—and so does the volume of automated processing. It’s good for road safety; drivers will reduce their speeds when they are assured of consistent enforcement. Automated systems also need to be precise: certified devices, clear photos, legal siting, and a traceable trail of custody.

Toribio’s main point is that drivers should not be allowed to speed, but that due processes are important. He argues that if the authority relies upon technology, it must always meet its standards. Then, if the authority doesn’t meet its own standards, it must do so.

Quick pre-payment checklist

• Search for the device ID, and dates. If you don’t see homologation and verification in the notice, ask for them in writing.
• Check out the photos. You should see a wide shot and a separate plate close-up with time/location data – not a crude crop.
• Consider positioning. If you are using mobile kits with clamps or tripods, be aware of any placement that is unsafe or incompatible.
• Decide before day 20. Either take the 50% reduction or file a reasoned challenge—but understand you usually can’t do both.

Spain’s camera network is expanding—and so is the paperwork behind it. Paying early can be the best option if the evidence is complete. Toribio says that if the file is thin and you are unsure of the evidence, don’t hesitate to request the documents.