From a reader comes this distressing bit of information from Australia:
Attached is an excerpt from a local parish newsletter. Fr Richard Leonard is a prominent Australian Jesuit and Director of the Australian Catholic Film Office. The glass-fronted tabernacle he refers to would seem to be clearly in breach of Canon 938.3. It also appears that the Precious Blood is being reserved in a chalice. Is this a trend?
If it is a trend, it is forbidden. The Precious Blood may not be reserved except in very rare cases when a tiny amount from Mass may be kept for Communion of sick people who absolutely cannot take even the smallest amount of solids or gluten, etc.
Otherwise, if a tabernacle had a door made from something that was a strong as the glass that goes into military vehicles in Afghanistan, then I suppose it would be okay. In any event, it should be veiled. The veil, not the sanctuary lamp, is the best sign of the presence of the Blessed Sacrament.
ADDITION: The 1983 Code of Canon Law
Can. 938 §1. The Most Holy Eucharist is to be reserved habitually in only one tabernacle of a church or oratory.
§2. The tabernacle in which the Most Holy Eucharist is reserved is to be situated in some part of the church or oratory which is distinguished, conspicuous, beautifully decorated, and suitable for prayer.
§3. The tabernacle in which the Most Holy Eucharist is reserved habitually is to be immovable, made of solid and opaque material, and locked in such a way that the danger of profanation is avoided as much as possible.
However, in the blurb, below, I think the reference to the "chalice" is really just an overly loose term for what is technically a ciborium or pyx in which Hosts are preserved.
Priests know that the Precious Blood cannot be reserved.
But if the Precious Blood is really being reserved in that tabernacle, I think I would involve the local bishop and/or the Congregation for Divine Worship in Rome.