Whilst there is no specific definition of electronic data, for any electronic evidence to be seized, the police request a Magistrate to issue a warrant. The evidence is gathered by an expert in the field who also compiles a report on how the evidence was collected and seized and presents all the evidence to the Magistrate whilst also confirming the report on oath. Additionally, the Police may, in addition to the power of seizing a computer machine, require any information which is contained in a computer to be delivered in a form in which it can be taken away and in which it is visible and legible. This is justified if it is necessary to seize it to prevent it being concealed, lost, damaged, altered or destroyed. Anything which has been lawfully seized by the Police may be retained so long as is necessary in all the circumstances