Fare evasion is becoming 'normalised', train staff have told an inquiry which found they are struggling to cope with 'aggressive' passengers who refuse to buy tickets.

Travellers are using 'a range of techniques to persistently' underpay or avoid paying and see it as a 'victimless crime', according to the Office of Road and Rail (ORR).

Staff enduring abusive behaviour when asking fare-dodgers to present their tickets are warning that evasion is becoming 'increasingly more challenging to tackle'.

The report had been commissioned to look at concerns some passengers were being unfairly prosecuted by train operators over genuine mistakes when buying tickets.

But it found fare evasion is a mounting problem now costing taxpayers £400million a year which is resulting in higher fares and less investment cash to improve services.