Dog owners throughout the UK are now legally required to have their pets microchipped, or else face a fine of up to £500.
All dogs in England, Scotland and Wales must have the chip by the time they are 8 weeks old. Northern Ireland has had the law in place since 2013.
If local authorities discover a dog who has not been microchipped, the owner has 21 days to comply with the law or be fined.
It is believed that one million dogs in the UK are not currently microchipped.
Microchipping dogs journal 28 Pages of information
Scientific studies involving mice and rats show that test animals have developed aggressive and lethal microchip-induced cancerous growths. Scientific reports also show that chipped zoo animals have developed microchip-associated cancerous growths. Medical reports and scientific studies also reveal that dogs and cats have developed aggressive cancerous growths at the site of their microchip implants.