A heroin addict drove the wrong way up the M4 motorway before crashing through a toll barrier and ramming a garda patrol car, Trim Circuit Court has heard.

David Wilson, 29, from Bawnboy, Ballyconnell, Co Cavan, pleaded guilty to charges of endangerment and driving without insurance at Rossan, Kinnegad on 4 April 2017.

The court heard he forced other drivers on the motorway to take evasive action, nudged a garda car off the road, crashed through the toll barrier at Enfield and only stopped when he rammed another patrol car which blocked him as he drove the wrong way down a slip road while trying to get back onto the motorway at Rossan, Kinnegad.

The court heard that during questioning following the chase Wilson admitted being one of two men who had robbed cash at knife point from a Topaz Filling Station in Rossan on 7 March 2017.

Judge Michael O'Shea said while the other raider was the one armed with the knife, which was pointed at an assistant who was forced to hand over money, Wilson was equally culpable.

The judge jailed the defendant for three years backed dated to 4 April when he was taken into custody and banned him from driving for four years from his release.