It’s pretty obvious. First they shredded it, and then they recycled it.
Unfortunately, they seem to have put the records into the shredder at a perfect right angle, so the cutters went along the printed lines instead of cutting across them at various angles.
What’s crazy is that they’re still using paper shredders that cut strips, in a government office! I haven’t seen anything but cross-cut security shredders for sale in the past 10-15 years, and shredders aren’t very expensive pieces of equipment to replace.
So, any fool could dive into their dumpster and tape police records back together, all because they can’t be bothered to get a modern shredder for a hundred bucks at OfficeMax.