Officers from the Proactive Targeting Team were alerted to a stolen motorcycle in the Dartford area around 7 p.m. on Wednesday, June 22, 2022.
When they caught up with the bike, the rider fled and jumped into the Mill Pond Road river, but he was quickly apprehended.
Following a search, a number of class A and B drugs were discovered.
A 20-year-old man from an unknown address was arrested on suspicion of auto theft and possession of class A and B drugs with intent to supply.
He has been released pending further investigation.