Non-Consummation

If the marriage has not been consummated due to the physical incapacity of one or both spouses, the marriage may be voidable. In cases where the marriage was not consummated due to one party’s physical incapacity, the other party may apply for an annulment.

Alternatively, if both parties are unable to consummate the marriage due to physical incapacity, either party may apply for an annulment.

Non-consummation of marriage can be a sensitive issue, and it may be difficult to prove. In such cases, medical evidence may be required to establish the physical incapacity of one or both parties.

Duress

If one party was forced into the marriage against their will, the marriage may be voidable. Duress can involve threats of physical harm or emotional coercion. If a party can prove that they were forced into the marriage, they may be able to obtain an annulment.

Duress can be difficult to prove, as it often involves a he-said-she-said situation. In such cases, witness statements or evidence of physical harm may be required to establish the claim of duress.

Mental Incapacity

If one party was mentally incapacitated at the time of the marriage, the marriage may be voidable. Mental incapacity can include conditions such as severe mental illness or developmental disabilities. If a party can prove that their mental incapacity prevented them from understanding the nature of the marriage, they may be able to obtain an annulment.
Mental incapacity can be difficult to establish, as it may require medical evidence to prove the claim. In such cases, expert testimony may be required to establish the mental incapacity of one party.

Consanguinity

If the parties are closely related to each other, the marriage may be void. In Singapore, the law prohibits marriage between certain blood relatives, including siblings, parents, and grandparents. If parties who are closely related to each other marry, the marriage may be considered void.

Consanguinity can be established through a simple DNA test or by producing evidence of the blood relationship between the parties.

Bigamy

If one party is already married to someone else, the subsequent marriage may be void. In Singapore, it is illegal to be married to more than one person at the same time. If a party enters into a subsequent marriage while still married to someone else, the second marriage may be considered void.

Bigamy can be established through a simple search of marriage records or by producing evidence of the earlier marriage.