To put it up plainly exorcism does not exist now if by exorcism you mean the casting out of evil spirits from persons possessed by them.It may have been there during Jesus times as Bible speaks about that but now be 100% sure that evil spirits ,
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https://www.ewtn.com/library/NEWAGE/JP2DEVIL.htm
In his discourse at the general audience of August 13, 1986, the Holy Father commented at great length on the fall of the angels. This was an eminently pastoral allocution
"Satan wishes to destroy life lived in accordance with the truth, life in the fullness of good, the supernatural life of grace and love. . . .
"As the result of the sin of our first parents, this fallen angel has acquired dominion over man to a certain extent. This is the doctrine that has been constantly professed and proclaimed by the Church, and which the Council of Trent confirmed in its treatise on original sin (cf. DS, 1511).
"In Sacred Scripture we find various indications of this influence on man and on the dispositions of his spirit (and of his body). In the Bible, Satan is called the
prince of this world' (cf. Jn. 12:31; 14:30; 16:11) and even the god of this world’ (2 Cor. 4:4).
1 John 5:19 We know that we are God’s children, and that the whole world lies under the power of the evil one.
that is Satan’s workers can no longer possess any body in this scientific age because they can be easily caught red handed.
Really! Evil spirits are spirits how can they be caught red handed ?
I have personal experience of a case where in the food cooked at a house,there used to be appearance of human hair often.The parish priest will go there ,pray ,sprinkle holy water in the kitchen to drive out the evil spirit and for some time there won’t be problem but will repeat again.The possibility of outsiders sneaking in and putting the hair while cooking was ruled out.Finally a psychiatrist found out that it was the women of the house herself who was doing that to punish the husband for his certain faults…
i believe you, isolated cases can happen.