Four men and a woman were arrested after a raid in Lincoln and stop and search in Skegness.
Cannabis, money and a kitchen knife were seized during a warrant on Carr Street in Lincoln on September 16.
Police confirmed on September 24 that a 20-year-old man and a 42-year-old woman from Lincolnshire have been released under investigation.
A 21-year-old man from Birmingham has been released on bail.
A further two people were arrested after a stop and search in Skegness on Wednesday, September 23, where officers seized 70 wraps of drugs.
Two men, aged 27 and 22, have been released on bail.
All were arrested on suspicion of drugs offences and investigations are ongoing.