Police should have the power to enter people's homes without a search warrant, according to senior police officers.
The Association of Scottish Police Superintendents (Asps) said entry and search powers should be made "an operational matter for police" as part of the Government's proposals to reform criminal law and practice.
Chief Superintendent David O'Connor, president of Asps, said: "It is time that police in Scotland were trusted to make such operational decisions and be given the power to do so. We do not propose that police be permitted to embark on fishing trips for evidence. We propose that such powers can only be exercised where it is necessary."
Police can only enter a private property in relation to a crime either with consent or under the authority of a warrant, other than in extreme circumstances. The warrant must be signed off by the procurator fiscal and approved under oath by a sheriff or justice of the peace.
The warrant "introduces a delay" during which criminals could dispose of stolen goods, guns, drugs or other incriminating evidence, Mr O'Connor said. "This cannot be in the best interests of victims of crime or the law abiding majority of the public.
"We believe that sufficient safeguards can be designed in by placing the authority for approving use of such powers at the minimum level of inspector who will ensure that the use of such powers is justifiable in terms of proportionality, necessity and legality.
"These powers have been available to police in England and Wales since 1984."
Warrant procedure is "outdated and an unnecessary obstacle for operational policing", he added.
A Scottish Government spokeswoman said: "The Scottish Government is keen to consider what further changes could be made to make the process for warrants simpler and more efficient. We are always happy to listen to views on how to improve and modernise the criminal justice system.
"That's why we have met with Asps and welcome their contribution to the public consultation on the implementation of the Carloway Review. We will consider it alongside the other responses."