Bill de Blasio, currently in the Pigpen phase of his mayoralty, with clouds hovering everywhere he goes, did not lay the pipes that carry unlimited cash to candidates for the State Legislature.

Those pipes — party committees that can accept far more money than individual candidates, and then freely pass along the money to the campaigns — have been used in virtually every competitive legislative race this century.

Nevertheless, a recently appointed state election official has called on prosecutors to investigate Mr. de Blasio and his allies in the 2014 legislative campaigns for availing themselves of the pipes. The official, Risa S. Sugarman, the chief enforcement counsel for the Board of Elections, asserted in a report that she had found “willful and flagrant” violations of laws limiting campaign money for candidates.

The de Blasio group solicited money for Democratic candidates they thought had a chance of winning election to the State Senate in 2014. The candidates could accept donations of as much as $10,300, but party committees in their counties, and at the state level, could receive about 10 times that.