CRI do not state the privileges can be exercised at night.
But to gain a CRI no night instruction training/competence testing
required.
Lets be honest in 3 hours you really can't teach a CRI to do anything. A CRI is TRI for SPA and is presumed to be an experienced pilot on type before commencing the course. He can then pretty much train for anything he is qualified to do. Only one hour of night is given to a FI to teach ab-initio at night so what is the issue of a night qualified CRI teaching a night qualified pilot. Its utter Bollux!