20. Normal use of computer not to be hampered

Every police officer and every expert who conducts any search, inspection or does any other thing in the course of an investigation, shall make every endeavour to ensure that the ordinary course of legitimate business for which any computer may be used is not hampered by such search, inspection or investigation and shall not seize any computer, computer system or part thereof, if such seizure will prejudice the conduct of the ordinary course of business for which the computer is used, unless—

it is not possible to conduct the inspection on the premises where such computer, computer system or part thereof is located; or

seizure of such computer, computer system or part thereof is essential to prevent the commission of the offence or the continuance of the offence or to obtain custody of any information which would otherwise be lost, destroyed, modified or rendered inaccessible.