At the last church I attended, the pastor went to church for daily Mass and found the statue of St. Joseph outside the side door of the church decapitated. This was several years ago. He promptly removed it and the church replaced it. It was sad, but – it’s a statue, not actually St. Joseph. That kind of thing is a cry for help. And the person who did it suddenly had a lot of people praying for him.
My current pastor says that the most effective security is to have people in and out of the building at unpredictable intervals all the time. So even though the diocese requires us to lock the church and the other buildings, everybody has a key to the church and the keypad code to the parish hall with adoration chapel.
Actually, when I was brand-new there (I had only been at a few daily Masses) the pastor handed me the code to get to the chapel – and I was shocked when I went in and found he had given me access to a big, beautifully appointed building with a commercial kitchen, library, several well-stocked Montessori religious ed rooms, etc. and most of the rooms were usually unlocked. This was a priest who had decided to be generous and trust God for the results. I admired that, and still do.
The knee-jerk reaction to lock buildings is only accomplishing exactly what Satan is trying to work through these acts of chaos: restricting access to Jesus. And these things still happen in locked churches. Honestly, it makes more sense to me to put up cameras. Since it’s going to happen – at least catch the person who did it!