The court heard that both brothers have previous convictions for motoring offences, including drink driving.
Morgan of Whitstone Road, Paignton and Rochford Drive, Luton, admitted drink driving and dangerous driving.
He said officers across Wales would continue to "target areas where drink driving is prevalent".
Assaults - many fuelled by alcohol - and drink driving both rise over Christmas and New Year.
Falkirk Football Club goalkeeper Graham Bowman has been fined and banned from the roads after admitting drink driving.
The court heard Cowap had previously been before magistrates for drink driving and being drunk in a hospital.
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Russell, of Glenrothes, had previous convictions for drink driving, careless driving and being behind the wheel while disqualified.
McDonald, a coach driver for 40 years, admitted dangerous driving and drink driving.
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He was told he had a "very troubling record" with previous convictions for driving without a licence and drink driving.
In North Yorkshire, the number of people caught drink driving over the Christmas period rose slightly compared to last year.
Hollywood actress Reese Witherspoon was arrested for disorderly conduct after police stopped her husband on suspicion of drink driving, US media report.
Singh was demanding disability compensation from the bus owner after his accident, but the bus owner instead accused Singh of drink driving.
The 20-year-old had admitted drink driving at Lochgreen Road on 11 May.
It saw a number of people charged with careless driving, speeding, seat belt offences, using a mobile phone while driving and drink driving.
Several MLAs noted that this was a timely motion coming at the beginning of the festive season when drink driving was a particular problem.
Policing was at the top but road safety, powers over speed and drink driving limits, ports, licensing of alcohol and light night entertainment were there too.
Harry Green, Chief Road Safety Officer for the Department of the Environment (DoE), said most people considered drink driving unacceptable and shameful, even as reprehensible as drug-dealing.
BBC: NEWS | UK | Northern Ireland | Drink-drive deaths revealed
"The stark reality behind the statistics and one of the hardest things for victims' families to deal with is that drink driving does not happen by chance, " he said.
But after modest spending and a turbulent season, which also saw their manager banned for drink driving, a late goal from Wigan's Paraguayan defender Antolin Alcaraz sealed their fate.
Even before this incident, the actor was a controversial choice because of anti-semitic remarks he made when he was arrested for drink driving in 2006 - for which he subsequently apologised.
The DoE's chief road safety officer, Harry Green, said 98 people have lost their lives on the roads of Northern Ireland so far this year, "several as a result of drink driving".
"We would urge you to call the Road Policing Unit direct on 0116 248 2017, leave a message and include as much information as you can, such as the person's name, what car they drive, where they live and where and when they could be caught drink driving, " she said.
The court later heard that he had previous convictions for dangerous driving, drink-driving and driving while disqualified.
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The Department for Transport (DfT) said it would also include a clampdown on drug-driving and the closing of loopholes that allow people to escape drink-driving charges.
Statistics show that last year, 37 deaths and 145 serious injuries were attributable to drink-driving.
BBC: NEWS | UK | Northern Ireland | Drink-drive deaths revealed
"And obviously it's a lot better than losing your licence for drink-driving, " said Mr Hubbard.
Mr Healy-Rae said the current drink-driving rules were forcing an older generation to stay at home.
The authorities are concerned the service is undermining its efforts to tackle drink-driving in the country.
He received medical treatment and was later arrested by Bedfordshire Police on suspicion of drink-driving.
The number of people caught drink-driving dropped by 15%, from 217 in 2011 to 185 in 2012.
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