Person, people, persons, peoples
![Image](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvkeQoPG4KPvHsFyV7DVgXgPFyq2aOpQXcYdT60gcoKx9P3rC8CfvX44kSRwhqLCDD8waaMH4SDyMjxSRMQEiZg6gtEDNXsY5496MeQW1kEtUcGMeDkfS4TTN_71UqkwLg3QhEdX83rL9a/s320/personsEg.jpg)
I tell my students that there is one person, two people in most contexts. 'Persons' comes into play in legal contexts 'murdered by a person or persons unknown' as crime show fans will know. 'Peoples' is concerned with tribes of people, 'the peoples of the Amazon rainforest'. I saw this sign and thought it was a good example of 'persons' in use. This is persons as it is referring to any one person. If the sign said, 'no unauthorised people' then perhaps a single unauthorised person would be allowed?