A man warned police that he had bombs at his home and would blow up anyone who tried to enter his flat.
Shane Pashby, 32, had earlier been in the garden yelling that he was "part of Isis " and he was donning what could have passed as a "suicide vest".
Hull Crown Court heard how he shoved a a curtain pole through his letter box pretending that it was a shotgun and police "couldn't take the risk" that there were not really any bombs, reports Hull Live.
Pashby, from Bransholme, admitted to affray on April 15.
Prosecutor Jeremy Barton said that police were called to an ongoing incident at Pashby's then home.
He was shouting threats that he had a bomb and would blow them up.
The incident started in the garden earlier when Pashby had shouted that he was part of Isis and was pouring liquid on himself.
He was wearing what could have been taken as a suicide vest but was actually a block of wood with wires attached to it.
Pashby pushed a curtain rail through the letter box and told police that it was a shotgun and that he was going to shoot them.
Police initially tried to talk to him but he told them that if they went in the house, he would bomb them all.
"He was not making much sense," said Mr Barton.
Pashby continued to make threats about bombs and was asked what the clear liquid was but he refused to say.
He told them about two similar bombs that would go off if the police went inside the flat.
"There was no bomb, there was no explosion," said Mr Barton.
Knives and the curtain pole were found as well as butane gas canisters and the block of wood with wires attached to it.
Pashby had convictions for 16 previous offences, including for wounding, assaulting a police officer and drugs matters.
Cathy Kioko-Gilligan, mitigating, said that Pashby had been in custody since April 16 but could now go to live with his father in Bransholme.
Judge Mark Bury told Pashby: "On the face of it, your behaviour was extremely frightening when police arrived.
"You were obviously very agitated," said Judge Bury.
"You were cracking on that you had a shotgun, although it was a curtain pole, and were also saying that you had bombs in the house and that you were going to blow up anybody who tried to get in through the door.
"It's highly likely that the police took this for what it was, just someone who lost their temper and behaved irrationally.
"It's highly likely that they didn't believe that you had a gun or a bomb or that you were going to blow anyone up but they couldn't take the risk.
"You did have an item that could have passed as a suicide vest and that's apparently what you were seen wearing in the garden."
Pashby was given a three-month 9pm to 7am curfew, a 120-day tagged alcohol abstinence order and 80 days' rehabilitation.
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