Labour MP Bill Esterson said the closure of many of Sefton's police station enquiry desks will be devastating for the community.
The MP slammed the Tory-Lib Dem government cuts which have led to the closure.
The police station enquiry desks at police stations in Crosby, Formby, Copy Lane and Ainsdale have all been closed, with Marsh Lane station desk going part time leaving just Southport Police Station with a 24/7 public enquiry desk.
The closures follow massive Conservative-Liberal Democrat cuts to the Merseyside Police budgets which are expected to see 800 fewer police officers and 1,000 civilian staff axed.
Bill said the move was just the start of cuts that could severely undermine the ability of the police to protect the public.
Bill said: "We are now seeing the real impact of the Tory-Lib Dem cuts. And the cuts will hit frontline policing here in Merseyside.
"Sefton is the first to feel the effects with the closure of the front desks in Formby, Crosby, Ainsdale and Copy Lane, but this will be carried out right across the county and the region.
"These cuts are dangerous and are damaging for the communities in which the police serve and the closure of the desks is the thin end of the wedge.
"For many people in Formby, Crosby and other communities in Sefton, these desks are the only contact they have with the police. It is a potentially damaging step to close them down."
Bill said this is yet another attack by the Tory-Lib Dem government on emergency services here in Merseyside following the decision to shut Crosby Coastguard Station.
Bill said: "Already in Sefton we have seen the Conservatives and Liberal Democrats in the government make the decision to close our lifesaving coastguard station in Crosby. Now they are closing the enquiry desks at our police stations.
"Our police officers in Merseyside do a fantastic job in keeping our streets safe. But I fear for the future of policing in Sefton as the Tory-Lib Dem cuts start to bite and we end up with fewer officers available which cannot be good news for public safety.
"These cuts are nothing short of reckless and dangerous, and it is people here in Formby and Crosby who will suffer because of them."