Section 21

the Singapore passport or Singapore travel document —

has been reported lost or stolen; or (ii)is so damaged or defaced as to render it, in the opinion of the Controller, unsuitable for use;

the Singapore passport or Singapore travel document is still valid at the time when the person applies for, or is issued with, another Singapore passport or Singapore travel document;

there is reasonable cause to believe that the particulars recorded in the Singapore passport or Singapore travel document are incorrect;

the holder of the Singapore passport or Singapore travel document is convicted of —

in the case of the holder of a Singapore passport — an arrestable offence against any written law which is prescribed for the purposes of section 19(2)(c);

in the case of the holder of a Singapore travel document — an arrestable offence against any written law which is prescribed for the purposes of section 20(2)(c); or

in any case — an offence under this Act or the repealed Act;

a competent authority makes a request under section 24(1) to the Controller to cancel the Singapore passport or Singapore travel document, and section 24(4) does not apply;

the Controller believes on reasonable grounds that the holder is a person mentioned in section 23(1) or 24(5);

the Controller becomes aware of a circumstance that would have required or permitted the Controller to refuse to issue a Singapore passport or a Singapore travel document to the person because of section 7(1) or 13(1) or of any provision in this Part, had the Controller been aware of the circumstance immediately before issuing the Singapore passport or Singapore travel document, as the case may be; or

in the case of a Singapore passport or a Singapore temporary travel document — the holder has ceased to be a citizen of Singapore.