Derek Kinghorn, 44, stabbed Dunfermline-born Brian Mair to death after he made a joke about his mother.

BBC: Hawick man Derek Kinghorn found guilty of murder

After Queensferry lifeboat station, the next busiest in Scotland was Kinghorn in Fife, where 30 launches took place, compared with 23 in 2009.

BBC: Summer lifeboat crews called out five times a day

However, Mr Kinghorn said problems arose with the Tyrone firm's arrangements at Ballyclare and also with a secondary disposal site a Cookstown landfill.

BBC: Scottish dump for NI waste

Kinghorn had denied repeatedly striking Mr Mair on the head and body with a knife, threatening to kill him and murdering him on 1 November 2011.

BBC: Hawick man Derek Kinghorn found guilty of murder

The manner in which the firm disposed of the rubbish was their business as long as it did not affect the price of the councils' contract, according to Mr Kinghorn.

BBC: Scottish dump for NI waste

According to Alex Kinghorn, the council's chief environmental health officer, the tender, which was signed last November, was based on the understanding that the majority of their waste would go to a landfill site in the Ballyclare area.

BBC: Scottish dump for NI waste