Many countries will not allow a police type radio into their country. If you can get a reciprocal amateur license and have an amateur band only radio its usually not a problem, but no reciprocal license and a wide band radio, its not getting in. And you would want to fill out an ATA carnet used for temporary import of certain goods without paying import taxes, to be signed off when you leave their country with the item. I've had to travel with radios for work to other countries and have also had the USAF haul some equipment into another country for us which included radios and a marine band repeater, but that bypassed the usual paperwork.