Traditional metal working in Mexico more. Important metal working centers include Taxco for silver, Santa Clara del Cobre for copper, Celaya for tin and Zacatecas for wrought iron. Metal working in Mesoamerica, especially of silver, gold and copper was advanced by the time the Spanish arrived, mostly concentrated in the modern states of Michoacán, Oaxaca and Guerrero. The mining and working of metals probably came to Mesoamerican cultures from the south. Metal working was principally in gold, silver, tin and lead, with some copper work known in what is now Michoacán. Gold was generally obtained in powder or pellet form in rivers and streams from
Metal theft in the United Kingdom Metal theft in the United Kingdom Metal theft in the United Kingdom is the systematic and organised theft of high-value metal (mostly copper) in the United Kingdom. Metal theft in the UK is largely the responsibility of the British Transport Police (BTP). Metal recycling traders can be traced by Trading Standards, regulated by the Chartered Trading Standards Institute. Most metal theft in the UK is classed as non-domestic burglary. In the year to March 2016, according to the ONS, there were 16,155 metal theft offences across the UK's 42 police forces, a significant decrease of 38% over the previous year.