Derbyshire Police are refusing to confirm the identities of the two people who were arrested or where they were arrested.
More top news
Known as 'spice' and 'black mamba', the so-called legal high is suspected of contributing to deaths in male and female institutions.
Prince Harry will launch the countdown to the 2017 Invictus Games in Canada - as he gears up for the this year's event in Florida.
The government has announced plans to ensure staff receive tips left by customers in bars and restaurants.