Montgomery County Precinct 4 Constables stopped a vehicle on traffic on I-69 at SH 99 Wednesday night. After investigation, they learned the driver of the vehicle, Jose Adan Ramos-Pas, 30, had an Immigration Detainer Warrant. He had been previously deported but was able to get back into the United States. He was also labeled as an aggravated felon and gang member in Mexico. He was transported to the Montgomery County Jail.