Amnesty International, Human Rights Watch (HRW) and the International Gay and Lesbian Human Rights Commission (IGLHRC) strongly urge the Nigerian Senate not to pass the ‘Same Gender Marriage (Prohibition) Bill 2011’. On the surface, the Bill appears to limit itself to introducing criminal penalties for marriage ceremonies between persons of the same sex, with a penalty of three years’ imprisonment. However, the Bill’s provisions extend far wider. The bill seeks to criminalise anyone who ‘witnesses’, ‘aids’ or ‘abets’ such a relationship. This means that the bill now criminalises identities, and not merely behaviours. It could also penalise any human rights defenders who would seek to stand up for the rights of lesbian, gay, bisexual or transgender people in Nigeria, as well as their friends, families and colleagues. The penalty for those who ‘witness’, ‘abet’ and ‘aid’ a same-sex relationship is five years imprisonment and/or a fine of N2000 for individuals and N50,000 for groups.