A jobless 20-year-old at the centre of a five-hour armed siege was fined just £73 yesterday and told: “You created a right hoo-hah.”

But police are still investigating whether a more serious crime took place in the build-up to the drama in Moulsecoomb on Saturday morning.

And they are urging possible witnesses to tell them if they saw a reported stabbing in nearby Hollingdean during the England football game on Friday night.

Daniel Jansen, from Peacehaven, was surrounded by up to 40 officers including a firearms unit and dog-handlers after he and another man took to the roof of a porch in Moulsecoomb.

Yesterday he admitted a public order offence after shouting abuse at police.

Brighton Magistrates’ Court was told he had gone to the Colbourne Avenue home of Alex Kilby, 18, with two women after he was asked to leave a party elsewhere on Friday night because of the way he was behaving.

They drank through the night and Jansen said when he went to bed the others pulled the covers off him. Talia Martin, defending, said: “They continually harassed and harangued him.”

A shouting match followed and one of the women called the police. When officers arrived Jansen shouted that he hadn’t done anything wrong.

He then shouted at officers out of an upstairs window, before climbing onto the roof of the porch with Mr Kilby while police gathered outside trying to talk them down.

Abuse was hurled from the roof. One onlooker was told: “Oi, fatty, I’m going to hit you so hard Moulsecoomb will feel it, you mug.”

Police, amid a volley of insults, were informed: “You are a waste of time.”

Chris Bull, prosecuting, said a knife was seen, and Jansen was heard saying: “Grab that knife, if they try and get us just cut yourself. They can’t touch us, health and safety.”

The knife – which the court was told was three inches long – was then dropped off the roof. The siege ended at about 12.15pm.

Presiding magistrate Michael Trayler told Jansen: “You created a right hoo-hah, with half the police force of Sussex outside the house.”

Jansen was fined £73 and ordered to pay £100 costs. He remains on police bail over allegations of wounding and assault.

Kilby has also been charged with a public order offence. He is on bail and due to appear in court on July 5.

Detectives said they are still investigating a report of a stabbing in Hollingdean Road sometime between 8pm and 10pm on Friday.

They are analysing bloodied clothing from the Colbourne Avenue address and the knife.

Anyone with information is asked to call Sussex Police on 101, quoting serial 433 of June 6, or Crimestoppers anonymously on 0800 555111.