Apology after police raid home of Shirley Williams, 75 2 October 2013 Last updated at 11:58 By Robert Thomas BBC Wales News Shirley Williams: "I just wondered why they were knocking our door down" Police have apologised to a 75-year-old woman after they smashed their way into her home by mistake. Shirley Williams was still unpacking after recently moving in when she heard a bang and shouts of "open the door" as officers tried to smash their way in. Mrs Williams says she has been "knocked for six" by the incident at the bungalow she rents with her husband and son in Deganwy, Conwy. North Wales Police say they will repair any damage. Mrs Williams, whose husband is in hospital in Bangor, Gwynedd, and whose son was at work, made her way to the front porch where she was confronted by three police officers. "At that point my heart was pumping away and then I started to shake - I shook for three days, continual shaking," said Mrs Williams, who suffers from angina and also has a pacemaker fitted. She said that just as she opened the badly-damaged door a police officer in plain clothes shouted at his colleagues to stop - they had got the wrong address. Mrs Williams said she was left in tears as the shock of what had happened sank in. At least six police officers were at the property and, after hearing details of Mrs Williams' medical condition, they called for paramedics to the house to give her a check-up. Mrs Williams believes the police may have been looking for a previous tenant but was surprised by the mistake as the bungalow had been empty for at least six weeks before her family moved in. Lights on She added that she's "always been a calm person" but has been badly affected by the incident. I've got all the lights on. The back door's locked and if the dog barks, I jump," she said, adding that the incident had "knocked for six." You lock your doors to keep burglars out but you can't keep the police out. They've got a bigger key than I have. Officers immediately apologised to the occupant and checked upon her welfare End Quote Ch Insp Andrew Williams North Wales Police Mrs Williams said the police stayed with her for an hour and a half after the incident and two officers later visited and gave her an orchid as an apology for what had happened. In a statement, Ch Insp Andrew Williams of North Wales Police said: "Officers attended at an address in Deganwy last week as part of a series of pro-active warrants executed across Conwy and Denbighshire. On entering the address and speaking to the occupier it became apparent that the previous tenants had very recently moved out. Officers immediately apologised to the occupant and checked upon her welfare. An officer has since visited the occupier again to extend our sincere apologies. Arrangements are also in hand to repair damage caused.