A man caught with a class B drug in his possession claimed he found it after overhearing two homeless men say they had lost it in the railway station car park, a court heard.
Lincoln magistrates were told that CCTV operators informed police that the defendant was in the car park and police wanted to talk to him about other matters.
Jim Clare, prosecuting, said he was searched and officers found a white putty substance which was later analysed and found to be amphetamine with an estimated street value of £60.
The 30 year-old from Lincoln admitted possession of a class B drug on June 25.
Justin Atkinson, representing, said the defendant was in the Cornhill when he overheard the men talking about the drugs they lost so he thought he would go and have a look.
“He had just found it when police arrived and he says the CCTV will show this to be true,” Mr Atkinson said.
Magistrates fined Frow £75 and ordered the drug to be forfeited and destroyed.