Earlier this week, Northamptonshire Police announced it will be the first force in the country to arm all of its frontline officers with the electric stun guns.

Although green means go, you should always use your judgment, and check the coast is clear. It’s important to be mindful of other road users at all times.

Meanwhile, a petition demanding all police officers in the UK are issued with Tasers has garnered more than 95,000 signatures, external.

On your driving test, anticipating the lights will demonstrate you’re reading the road correctly. For instance, if a light has just turned red, you know you’ll be waiting for long enough to put the car in neutral and apply the handbrake. Or if you’re approaching a light that has been green for a long time, it’s worth slowing down, as there’s a better chance it will turn red soon.

Temporary lights tend not to have lines, so road users should use their judgment to stop at a distance where it’s safe to pull off afterwards.

Traffic light orangeor yellow

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The Independent reported that he asked Home Secretary Priti Patel to provide funding, external for frontline officers working across the country to undergo training.

John Apter, national chair of the Police Federation, believes the Home Office should pay for all frontline officers to undergo the training - not the heads of each individual force.

A Home Office spokesman told the BBC: "We are working to ensure forces have the resources, tools and powers they need to keep people safe.

The death of ex-footballer Dalian Atkinson in 2016, after he was shot with a Taser, sparked virulent debate about the use of the stun gun by police. However, an inquest is yet to take place and while the CPS continues to consider bringing criminal charges against officers, it remains unclear whether the Taser contributed to Atkinson's death.

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A study by Cambridge University found that police officers visibly armed with Tasers used force 48% more often, external, and were more likely to be assaulted than those on unarmed shifts.

He told the BBC: "Officers are telling me daily they are feeling vulnerable and often isolated due to the lack of this vital protective equipment.

"This call for a wider rollout is not new; the federation has been fighting for many years for Tasers to be available to all colleagues who want to carry it and who pass the assessment."

They were introduced in the UK in 2003 for firearms officers. In 2007 they were extended to non-firearms officers known as Specially Trained Officers (STO).

"A large number of officers fail the Taser training course, either in the proficiency of using it or their judgement about when to use it. This demonstrates very clearly that a Taser is not suitable for every officer."

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In addition, if the right-hand arrow is green, it’s safe for you to turn right. Traffic coming in the other direction will be halted, so you won’t need to give way.

What is amberlight traffic

"Ultimately, having a Taser gives them the capability to defend not only themselves but also the public they want to protect.

In 2015, a jury at the inquest of Jordan Begley, 23, delivered a narrative verdict concluding he died partly as a result of being "inappropriately and unreasonably" Tasered and restrained by Greater Manchester Police officers two years earlier.

Ambertraffic lightrules

Amber usually means stop, unless it’s unsafe to do so. If you’re too close to the line at the time the light turns amber, you may be committed, and braking sharply could lead to an accident. Technically it’s legal to go through an amber light, but ideally you shouldn’t do this unless you have to.

A recent Police Federation of England and Wales survey found 94% of officers think Tasers should be issued to more frontline staff.

If an officer draws, aims and places a Taser red dot on the suspect, without harming them, the weapon is classed as "used" but not discharged. In 85% of the cases they were not discharged.

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This means the lights are about to change from red, so you should prepare to go. If you’re at a halt, put the car in gear and release the handbrake. Don’t cross the line until the light goes green, however.

Several police forces, including South Wales Police, have doubled the amount of officers who are Taser trained in recent years but say they will not train all staff.

Oliver Feeley-Sprague, Amnesty UK's police and security programme director, says: "We recognise that Tasers can play a part in modern policing and have been proven to be effective as a distance control weapon in response to threats of serious harm. However, using them is not risk-free.

STOP. If you’re about to learn to drive, traffic lights are among the first road signals you’ll be taught. While quite a straightforward signal, they’re important to get right. Not only are they common in day-to-day driving, but they feature in the driving test – both the theory and the practical.

Days later it was joined by a second force, Durham Constabulary, which said every frontline officer who wants a Taser will undergo training.

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To be issued with a Taser, police officers must have completed 18 hours of training and are then required to undergo a compulsory refresher course every year.

According to Home Office figures, they were used in 17,100 incidents in the year to March 2018, up from 11,300 the year before.

Although the decision to issue Tasers is a matter for each individual force, there are calls for the Home Office to fund training for all frontline officers.

Amber or yellowtraffic light

Yes, it’s against the law to go through a red light. Not only that, it’s dangerous, and could easily lead to an accident. Running a red light puts you directly in the path of other road users. Even if there appears to be no other traffic, you need to stop at a red light. Sometimes, traffic might appear from a direction you might not expect. Plus traffic lights may be fitted with cameras for enforcement.

An experiment with City of London police found that, while rarely deployed, just the presence of Tasers lead to greater overall hostility in interactions between the police and public.

By displaying a red light, traffic lights signal to a driver when they should stop. When they turn to green, it’s safe to go again. Their purpose is to manage the flow of traffic, and let road users know when it’s safe to cross the path of other vehicles.

Most traffic lights also have an amber light, which we’ll explain further below. Traffic lights can be fixed, such as at busy junctions; or temporary, such as at roadworks.

If the traffic lights are at a pedestrian crossing, the lights tend to flash amber before turning green. This means you can proceed if the crossing is clear. If pedestrians are still crossing, wait until it’s safe to go.

"Tasers are an important tactical option for officers facing violent situations, and it is for chief officers to determine the number of devices and specially trained officers they need."

Traffic lights with green arrows pointing left, right or straight ahead are called filter traffic lights. These let road users in different lanes know when it’s safe for them to go, and they get priority. For instance, if the light for straight ahead is red, but the left-hand arrow is green, then those turning left can go.

Tasers are an illegal weapon in the UK and members of the public who are found in possession of a Taser face up to 10 years in prison.

Fixed traffic lights will have clearly marked lines where you should stop. Many traffic lights have two lines, and a differently coloured box for cyclists. Other vehicles should avoid coming to a halt in this box.

On approaching a red light, stop behind the line. All road users including cyclists must do this. Put your vehicle in neutral and apply the handbrake, unless you think the wait will be short.

According to Amnesty International, 18 people in the UK have died after a Taser was discharged against them, external by police since Tasers were introduced 16 years ago.

An IPCC report, external tracked several of the subsequent inquests - none of which recorded Taser use as the cause of death. However, the report only covered cases up to 2012.

They fire two small dart-like electrodes before delivering a high-voltage shock to temporarily disable a suspect. This allows officers to deal with violent or potentially violent people at a distance.

Additionally, black people are three times more likely than white people to be involved in Taser incidents, Home Office figures disclosed to the BBC in 2015 suggest.