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https://www.redandwhitekop.com/forum/index.php?topic=308687.0
"Stewards have every right to ask a supporter to show their tickets. They do not have the powers to ask fans to show their ID. However, stewards and the regulations around them often rely on something being a "reasonable request". Whether or not it is reasonable for stewards to ask fans to show them ID is open to debate. It is up to a supporter to decide if, in their personal view, it is reasonable. What fans should be very wary of is allowing stewards to take their ID away to copy it or allowing stewards to note down personal details from ID such as an address or date of birth.
If a fan does not co-operate with a steward in showing ID there is a possibility that a steward may call over a police officer to ask them to search a fan or demand a fan shows ID. In theory a police officer should not get involved as this is civil not criminal law, but in practice they probably will.
Unless the police suspect you of an offence you do not have to give your personal details but the likelihood is the police may threaten you with arrest if you don't. It takes a strong person to stand their ground in these circumstances.
More details on this are available here
The police should not go through your pockets or wallet etc to find ID. If they do you have grounds for complaint.
If a fan is ejected during the game it is likely the stewards will demand the fan gives them their name and address. This again brings us back to the point on whether or not that is deemed a reasonable request and again it is possible stewards will involve the police if a supporter doesn't co-operate. If a fan does give their name and address to the police or stewards then those details will be passed back to LFC who may ban supporters even if a criminal offence hasn't been committed."