I believe that you are referring to an interdict, which is a censure that can only be imposed by the Holy See, if it is general, or by the local Ordinary (i.e. the local bishop) on parishes or persons - for specific reasons. When a parish or region is under inderdict, religious services are curtailed, but sacraments may be given to the dying, marriages celebrated, and Holy Communion administered if the interdict is general or local (not personal). from Modern Catholic Dictionary by John A. Hardon, S.J. Doubleday & Co., Inc. Garden City, NY 1980
Roman Catholic AnswerTo the best of my knowlege, the sacrament of confirmation has never been know as the "sacrament of witnessing", at least not in any Catholic Encyclopedia OR Catechism that I have and they are from the Council of Trent up to the current Catechism of the Catholic Church.
Holy Orders
eucharist
Yes.
Roman Catholic answerAny Catholic may receive the Sacrament of Anointing either in danger of death or when one has a serious illness.
The sacrament of matrimony is a ritual.
Comunion
Yes, as long as he does not remarry.
If you are absolved in the sacrament of penance.
Holy Orders
Roman Catholic AnswerThrough the grace of God.
Men who are ordained by a bishop through the Sacrament of Holy Orders are given the authority to serve as deacons, priests, or bishops in the Catholic Church.