Virgin train - alcohol restrictions

Can anyone advise how serious the restrictions are likely to be based on the semi?
I'm looking for advice by the way not some smart arse dictionary definition of the words.
Do you get searched by the old bill or are they just looking out for lads with bags full of ale?
From a law perspective could we get nicked if we get caught drinking once onboard, or will the booze just be confiscated.
I'm looking for advice by the way not some smart arse dictionary definition of the words.
Do you get searched by the old bill or are they just looking out for lads with bags full of ale?
From a law perspective could we get nicked if we get caught drinking once onboard, or will the booze just be confiscated.