A fan at Millwall v Sheffield United was arrested for stealing a match ball

Published 20:37 20 Aug 2016 BST

Conan Doherty

A fan at Millwall v Sheffield United was arrested for stealing a match ball

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They're cracking down at The Den.

The reputation of some Millwall fans precedes them but, for Lewisham Metropolitan Police, it's not about that - it's about the law. It's black and white and, if you step outside of the realms of legality, you will be caught. So, whilst some might expect some more extremes at a Millwall match, the big controversy on Saturday - when they beat Sheffield United 2-1 - was that someone stole a football. Someone stole a football. But that didn't stop the police acting swiftly to take action against the perpetrator, arresting him for theft. https://twitter.com/MPSLewisham/status/767030302237679621 The arrested party was not alone, but there's no discrimination when it comes to breaking the law. https://twitter.com/MPSLewisham/status/767031021770567680 https://twitter.com/MPSLewisham/status/767031320576876544 This being 2016 though - and Twitter - people turned their anger at the justice-keepers.

The way the authorities dealt with it seemed extreme to some.

https://twitter.com/Mikedukemfc87/status/767031700337618944

So the police cracked down there as well.

https://twitter.com/Mikedukemfc87/status/767038790154223616

Was the arrest necessary?

https://twitter.com/boringdaddio/status/767046004759814144

In the grand scheme of things, like...

https://twitter.com/MFCDarren1/status/767034867225858049

Something about the tax payer.

https://twitter.com/Lazallana/status/767060836376510464 https://twitter.com/jamesf8419/status/767034940584255490

When you say it out loud.

https://twitter.com/Chris_Lane1989/status/767034602473095168 https://twitter.com/Smudger2016/status/767032069654515712 https://twitter.com/FutboIMarco/status/767060119150559237 https://twitter.com/Xhakaology/status/767035661371179009