The justice minister says she isn't able to predict the impact proposed 20mph limits will have on speeding offences.
Jane Poole-Wilson responded to a question in the House of Keys this week from Douglas Central MHK Chris Thomas.
She also said existing data from the police and courts about past speeding offences couldn't be analysed in that way.
The minister went on to explain why she personally couldn't make predictions about the future:
MHKs postpone debate on bishop losing parliamentary vote
The House of Keys has decided to postpone a debate which could see the Island's Lord Bishop lose their vote in parliament.
Isle of Man cat turns up in Liverpool - is he yours?
Has your cat gone on holiday to Merseyside?
Government unveils Food & Drink Festival replacement
Business Isle of Man says a new event called the Big Manx Feast will replace the Island's Food and Drink Festival next year.
Company "wants to leave Onchan Raceway", commissioners told
Onchan commissioners say they don't want to buy assets belonging to the company running the town's raceway.
Charity footy tournaments for Rebecca House
A series of football tournaments around the Island will raise cash for charity this month.
Church wedding and funeral fees set to rise
Getting married in church could be about to get more expensive.
Airport warns wrapped gifts might have to be opened at security
Don't take wrapped presents through airport security - in case they need to be inspected.
Southern charities can apply for grants from this week
From this week charities in the south of the Island can apply for funding from a scheme involving the civic amenity site.
