Cannabis and crystal meth worth €41,000 was seized from a home in Letterkenny yesterday.
A man was arrested as a result.
Gardaí carried out the search as part of an investigation targeting the sale and supply of controlled drugs under Operation Tara.
Cannabis herb with an estimated street value of €30,500 and methamphetamine worth €10,500 were confiscated.
The man his 30s is detained at a garda station in the county and is due to appear in court next month.
