Police appeal for information about the fires on Chanterlands Avenue in Hull.
Police said Joshua Smith made several attempts to throw drugs over the wall of HMP Hull.
Police swooped in Goole after reports that people were believed to have entered the UK illegally.
Officers say he was acting suspiciously around a car which was found to have false number plates.
A teenager went missing while swimming off the East Yorkshire coast on Tuesday.
Police say they cannot reassure any families who used Legacy Independent Funeral Directors.
Chris Noble is disbarred from the police service after being found guilty of gross misconduct.
Chris Noble faces a misconduct hearing regarding his behaviour, having been suspended in August.
Two cars were damaged in the blaze which was reported in the early hours.
