Some of the fireworks were only suitable for controlled displays

Investigations have started by the county council's trading standards service after the discovery of the dangerous goods at Worfield, near Bridgnorth, on Saturday.

Three large boxes of fireworks were confiscated from a West Midlands-based trader.

Two other traders were found to be offering counterfeit CDs and Premiership football shirts, which were also seized.

Officers visited the sale as part of an ongoing crackdown on counterfeit goods and said the small number of offenders proved their approach was working.

They are most definitely unsuitable for a back garden. Some of them were so large they were potentially lethal David Walker, trading standards

In recent weeks, with police assistance, a number of arrests have been made and hundreds of thousands of pounds worth of counterfeit goods have been seized.

Chief trading standards officer David Walker said: "There is strict legislation controlling the sale and storage of fireworks. Each year there are horrendous problems caused by their improper use.

"The fireworks seized at the weekend were not the normal domestic products which are legally on retail sale at licensed premises to the general public.

"They are most definitely unsuitable for a back garden. Some of them were so large they were potentially lethal."

Councillor Bill Morris, cabinet member for safer communities, said: "The sale and storage of fireworks is strictly controlled for obvious reasons. The very last place that we want to see them sold or displayed is a car boot sale.

"This is a highly disturbing development."