Police have sent a written drugs warning to students in an accommodation block after neighbours complained they could smell cannabis smoke.
Letters were delivered to occupants of a block of flats in Leicester's West End this week.
The letters, which are not addressed to individuals, spell out the legal consequences of a conviction of possession or supply of the drug while highlighting support available to those with addiction problems.
Pc Matt Eld, a member of the Westcotes beat team, visited the block on Wednesday.
Pc Eld said: "If we get reports from members of the public of a smell of cannabis we will go and investigate and assess whether it's a small number of people smoking it or whether there is dealing or cultivation going on.
"In this case, we were satisfied it was a small number of people smoking it.
"It was difficult to pinpoint exactly who was responsible, so we decided to send a letter to everyone in the block.
"When it's a building with multiple occupants we have that option.
"The letters aren't addressed to individuals and basically say that if anything untoward is going on then it has to stop.
"They also advise people of the law around possession of drugs.
"Also, we tell them they could be evicted from the block because using cannabis there is a breach of their tenancy agreements.
"The same applies to people who allow their visitors to come in and smoke cannabis.
"When people read the letter we don't want them to think we are accusing them. It's only a small number of people who are doing it."