A 31-year-old man was arrested after police raided properties in Perth in a joint drugs operation with Merseyside Police.
Scottish officers joined in with the raids as part of a major UK-wide investigation by the Matrix Serious Organised Crime unit.
Properties in Perth's Glengarry Road and Tulloch Terrace were targeted.
The man was taken for interview in Merseyside on suspicion of conspiring to supply Class A drugs.
The arrest follows the charging of 22 people in Merseyside, South Wales, Devon, and Cornwall last Thursday after a series of co-ordinated dawn raids.
Large amounts of Class A drugs, cannabis and cash were found during the searches in England and Wales.
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