Here are some of your comments:

What the DVLA fails to tell in its press release is, that if the car is not registered at DVLA, the camera is a total waste of time, because they cannot trace the proper owner anyway.

So they spend uncecessary money following up that case, when in the fact the 'law breaker' still gets away with it.
Stuart Williams, Swansea, Wales

Are these the same cameras that were being trialled around the Penarth to Sully road this week?.....

Whatever the camera in the van was doing it seemed to require four seperate police cars, one police motorcycle and twelve police officers standing around doing nothing..... what a good use of my tax money!
Lyndon, Cardiff,Wales

Several readers have posted comments that if a car has no "tax disc" then it is uninsured. This is not the case.

Insurance companies get a little jumpy however, when a car has no MOT certificate.
Pete Smith, UK

As an owner of two vehicles (both of which are taxed), I think its about time the DVLA did something to catch the people who are ripping off the system
Chris, UK

Road tax should be scrapped for motorcycles as they don't cause congestion or road wear yet fuel costs the same.
Tim Myerscough, Wales

Let's stop spending money on expensive technology that needs maintaining and does not actually collect anything other than supposedly legal licence plate numbers.

It would be more efficient to place both road tax and third party insurance on the cost of fuel. All vehicles moving under their own power would therefore be taxed and insured with minimal effort, in relation to the amount of fuel it uses.

Such an idea would be unpopular as those costs that are paid by some of us annually and then forgotten would be seen every time we filled up with fuel.
Clive Counsell, Wales

Caravans should attract a separate tax so that when stuck behind one, motorists can at least be grateful that the owner is paying extra for holding us up...
Glen, Neath

Simon of Anglesey says he is really scared of people without insurance... I understood that if the car is unlicensed, any insurance it or the driver has is automatically invalid.

If so, that is more than enough reason to chase unlicenced cars... apart from the revenue and unfairness reasons.
Paul, Australia; ex-Cardiff

Excellent. At last technology being put to good use by the authorities. You should not be driving without a tax disc.(or insurance) Full stop. If you are, you are no doubt the type that puts two fingers up to society and they deserve all they get. If you are a law abiding citizen you have nothing to fear. More of this please.
John Randall, Wales

I and many others struggle each year to find the money for road tax. It's so annoying to see so many people flaunting the law and not paying up.

How are the roads supposed to be improved if we don't pay. Cars that aren't taxed are also usually just the ones that aren't insured or MOT'd either.

This puts motorist and pedestrians alike at risk from faulty non roadworthy vehicles.
J.Morgan, Wales

About time too! An untaxed vehicle means the vehicle is uninsured (even if the insurance is paid) so I'm glad this system is in place.

Why should the untaxed get away with it? I pay for the roads so should everyone else, in repsonse to the ones who 'can't afford it'- buy a bike!
Ed, Wales

Refering to Sam's (north Wales) comment below, if motorists drove their vehicles on roads legally with tax and insurance, then the police wouldn't have to waste time on trivial matters and perhaps then they could spend more time on catching criminals!

Don't forget that in most cases, no tax=no insurance=no MoT.

So is it ok to drive like this, injure or even kill someone when not insured - Is that trivial Sam?
Chris, UK

I could not stop laughing when I saw this report. I have always taxed my car and expect everyone else to do so.

I recently phoned my local police to report a car in my road without road tax, their response was that is nothing to do with them.

I then contacted the DVLA to be told that most cars were in the process of being taxed and they, too, have done nothing.

Some two months later this car is still parked in my street and is used everyday.

What a complete waste of time. Lower the cost and I'll think about getting tax for my car.
RD, Wales

What incentive do I have to tax my car at the end of this month?
Paul Francis, RCT

When will the authorities see sense? Or is there method in their madness?

Do they really thing that they will be catching criminal road tax dodgers, who are probably also dangerous drivers of dangerous vehicles? Which are also probably uninsured. And unregistered.

Or are they hoping to catch a lot of law-abiding citizens with more important things on their mind than complying with endless red tape and bureaucracy (like smaller numbers on new tin signs hidden in hedgerows) and make endless amounts of money?
Bogush J Mann, England

This will catch lots of otherwise legal drivers who have missed their tax by a couple of weeks. It will utterly fail to catch dangerous drivers, unsafe vehicles, nutcases and those millions of untraceable drivers who don't register their vehicles.

It will also cost more to run than it saves. Let's spend money on the hopeless road system instead!
Andy H, England

Its the drivers that have no insurance that really scare me, they are the real outlaws!
Simon, Anglesey

Maybe if the motorist wasn't being hit so hard by the cost of fuel and everything else, they would find it easier to be able to pay road tax. It would be far better to use the money wasted on these cameras to resurface some of the roads that are now in a dangerous condition.
Vincent Jones, Wales

I pay road tax just the same as everyone else, and this new scheme is all well and good but isn't it time the police stopped wasting time on trivial matters and concentrated on catching real criminals!
Sam, north Wales