Detective Garda Campbell attempted to talk with John Carthy but, in his evidence, said Carthy replied with an expletive and a threat to blow his head off. This exchange was followed by a shot at the Garda car, which was unoccupied. In total, John Carthy fired six shots by the time Detective Garda Campbell rang Granard Garda station with a request that they contact Superintendent Michael Byrne, who was in charge of the Granard Sub-District. Byrne instructed them to contact Superintendent Joseph Shelly in Mullingar. Shelly assumed command of the incident and ordered that a party of armed Gardaí be sent from Athlone station forthwith. En route to Granard Garda Station, Superintendent Shelly had another discussion with Superintendent Byrne and requested that armed Gardaí from Longford also be sent to Abbeylara. By 5:30pm, therefore, armed Gardaí and detectives from Athlone, Longford and Mullingar had been sent to John Carthy's home in Abbeylara.