Two men fled from officers as they tracked down the location of a stolen van in Northfield Road, Netherton.
Both suspects fled, with one jumping into a nearby canal, but both were caught and detained on suspicion of theft.
The officers, who were based at Brierley Hill police station, in Dudley, said three stolen vehicles were also recovered.
Force Response tweeted: "Cteam Brierley Hill received information regarding the location of a stolen van today.
"On arrival at the unit 2 males tried to run, with 1 jumping in the canal! 3 stolen vehicles recovered at the suspected chop shop and both males arrested on suspicion of theft."
A spokeswoman for West Midlands Police said: "We are investigating after a stolen Ford Transit van was found at an industrial unit on Northfield Road in Netherton just before 7.30am yesterday.
"A number of other stolen cars and car parts were found by officers in what is suspected to be a chop shop.
"Two men, aged 49 and 20 were arrested on suspicion of theft and have been released pending further investigation.
"Enquiries continue and anyone with information is asked to contact us via live chat at west-midlands.police.uk between 8am and midnight, or call 101 anytime. Crimestoppers can be called anonymously on 0800 555 111. Please quote crime reference 20SW/287007B/20."