Section 55

to be likely that such building or structure will if left standing be used by any person or persons who intend, or are about, to act or have recently acted in a manner prejudicial to public security or by any other person who is likely to harbour any such persons; and

to be impracticable in any other way to prevent such use,destroy or authorise the destruction of that building or structure.

that such building or structure was erected by or with the consent of the person lawfully entitled to the land on which the same was erected; and

that such building or structure was not liable to forfeiture under any regulations made under section 72:Provided that compensation may be paid to the owner or occupier of any building or structure erected by or with the consent of the person lawfully entitled to the land on which it was erected, notwithstanding that such building or structure is liable to forfeiture under any regulations made under section 72, if such owner or occupier satisfies the Minister that the building or structure was used by persons who intend, or are about, to act or have recently acted, in a manner prejudicial to public security or that such persons were being or had been harboured by his employee or agent, as the case may be, without his knowledge or consent, and that he exercised all due diligence to prevent such building or structure being so used or the harbouring of such persons, as the case may be.