Pickman's model
Starry Wisdom
The current generation of warrant cards feature a photograph of the officer along with their name and rank, along with the force crest and a security hologram.
The new versions are expected to include electronic chips that store data about the cardholder along with a number of other security features. The new cards will also provide better access to secure buildings and transportation hubs.
The upgrade, already agreed by the Mayor of London’s office, will cost around £650,000.
Although anyone found using a fake warrant card faces being charged with impersonating a police officer, an offence that carries a maximum six-month prison sentence, such cards are widely available online.
so in short don't trust anyone who shows you a warrant card and affects to be a cop