PEOPLE have until Saturday to admit they have reported a bogus crime.
Police are having a major clampdown on people who claim they have been robbery victims.
They have given a month- long amnesty to people who say they have been robbed of their mobile phones.
Anyone who has made up a crime - but not yet profited from the offence - can admit it under the amnesty which finishes at midnight tomorrow.
The amnesty has launched the police's tough new stance on fictional crimes.
Police believe many crime reports are false, with supposed victims anxious to get a crime number to claim on their insurance and get a better mobile phone.
Fictional crimes include a 19-year-old Huddersfield man who claimed he had been robbed in the street and had cash stolen.
Police discovered he had invented it all.
He was fined £80 for wasting police time.
A woman of 25 was cautioned after falsely claiming she had been beaten up in Milnsbridge and had her social security payment stolen.
Det Chief Insp Tony Craven, of Huddersfield police, said: "We are committed to investigating genuine crimes and encourage people to report them.
"But there are people who waste our time by knowingly reporting crimes which are false. This issue will be investigated."
Over the last 12 months priority crimes which cause people most concern are down in Huddersfield.
The number of robberies have more than halved.
House burglaries have fallen by 44%, the theft of cars is down by more than a third and stealing from cars has reduced by 19%.
Det Chief Insp Craven added: "A lot of criminals have been sent to jail.
"We want to lower this even further by putting a stop to the false reporting of crime.
"Timewasters will be left in no doubt that there are consequences to making false crime reports. They will face arrest, fixed-penalty fines or prosecution.
"Police time is valuable and people who try to waste it can expect to be held to account for their lies."