These companies are deeply ant-competitive at heart. Tesco obviously wants to be The High Street.

Supermarkets should only be permitted to sell groceries and not allowed to muscle in on anything else. They should not be permiited to open on Sundays and there should also be a maximum store size.

Rich, Cambridge, UK

Supermarkets have been fixing prices for years. Check out hair care, razor blade prices. Major supermarkets & Boots (via price matching) have been forced by the retailers to ensure that the consumer price on their shelves are not lower at other supermarkets. I am an Ex General Manager Wella GB

Paul Clegg, Frome, United Kingdom

If found guilty of price fixing will "real" punitive penalities be implosed on these giants. Or made to reduce the number of stores each would be allowed, as happenedto the brewing industry.

Keith Stanley, Leeds

Keith Stanley, Leeds, West Yorks

The OFT did not get fined nearly enough for slagging off Morrisons, and Tesco now looks upon itself as the Fifth Estate

terry, L'Absie, France

Exactly so Felix. It's all government prompted greandstanding to make voters think that The Tartan Tax Collector is looking after their interests. I'd rather see Britain run by the supermarkets than the idiots that are doing it now.

James, Isle of Man,

With the profits made by these super stores it seems likely there is a master plan of sorts, collusion is likely but whether or not this is criminal, who can tell?

Mike O Connor, plymouth,

We shouldn't jump to conclusions but there's usually no smoke without fire. The government has been soft on supermarket for too long. Their distribution model is becoming unsustainable and power over our tastes and pockets equal to many governments.

Ray Cobbett, Emsworth, Hants,

I'd rather have prices fixed by businesses than by interference from the OFT. Why should those who wouldn't freely choose to compete be forced to compete? It just amounts to a diktat to lower prices. How can this be healthy? True monopolies aren't stable, anyway, unless enshrined in law.

_Felix, Nottingham,