The Competition and Markets Authority (CMA) has announced a probe into the online ticket rip-offs common for popular live events.

Some of the tickets traded by touts were originally sold on the basis that they could not be sold to a third party. When the tickets do not display this condition, third parties paying substantial sums for them could find them invalid when presented at the venue.

The CMA is also concerned that other important details, such as the original ticket price, and the seat location are not being revealed to buyers before they buy.