Senior Minister K Shanmugam has stated that the effectiveness of chemical castration in reducing crime rates is not yet proven. The evidence available so far is not conclusive, according to the minister.

This suggests that a decision on implementing chemical castration for sex offenders will depend on further evidence. The minister indicated that consideration is open to the idea if it is proven to be effective.

Further details on the minister's statement are available, providing more context on the consideration of chemical castration as a potential measure.