Border-crossing immigrants are being arrested by Texas troopers on state charges like trespassing, and they’re starting to trickle into a prison emptied to house them. A Texas prison has officially started detaining immigrants accused of state crimes after allegedly crossing the U.S.-Mexico border illegally as part of Gov. Greg Abbott’s heightened border security efforts. The Texas Department of Criminal Justice said Wednesday that Val Verde County, home to Del Rio, sent three people arrested under Abbott’s border initiative Tuesday to the Briscoe Unit in Dilley, a small town between San Antonio and Laredo. The number of detainees is expected to grow rapidly;