The PSU is led by former senior police officer and Yorkshire Water managing director Kevin Bond.
The Republic of Ireland's most senior police officer, Garda Commissioner Martin Callinan, also expressed his condolences.
Mr Hogg was a senior police officer in Durham and Cleveland during a 30-year career.
"There are fears of lots of civilian casualties, " said a senior police officer who was on the scene.
There is a "high" threat of terrorists working in Birmingham, a senior police officer in the city has said.
Senior police officer V Dinesh Reddy told the Associated Press news agency that improvised explosive devices had been used.
The costs were disclosed in a letter to Home Affairs Select committee chairman Keith Vaz from a senior police officer.
The latest incident was reported from Meerpur village, in Bulandshahr district, senior police officer Gulab Singh was reported as saying.
It was a bold pledge by a senior police officer that within three years, street gangs in the West Midlands would be eradicated.
BBC: Birmingham street gang eradication in 2013 'unrealistic'
Earlier on Tuesday, a senior police officer described shots aimed at officers during rioting in east Belfast on Monday night as "attempted murder".
Sir Paul Stephenson, Britain's most senior police officer, resigned on Sunday after facing criticism for the Met's recruitment of Mr Wallis as a PR consultant.
Senior police officer in Madras SR Jangid told a press conference he received a call about the man on Tuesday morning from a "reliable informant".
The alleged spy is accused of "passing information related to Indian defence installations and military activities", senior police officer DS Dinkar told AFP news agency.
Dera Ismail Khan was put on high alert Monday, with police checking vehicles leaving and entering the city, said Gul Afzal Afridi, a senior police officer.
The senior police officer arrested yesterday on suspicion of leaking confidential information is Ch Supt Andy Rowell, commander of the London borough of Ealing, the BBC understands.
Days after the murder, a senior police officer told media that Aarushi had been killed because she had discovered her father's alleged extramarital relationship with another dentist.
Then there was the case of Chang Yao-sheng, a senior police officer who forged documents to make himself look like a hero in a shoot-out with a notorious criminal.
The court heard the call was taken by NoW journalist Tim Wood - who said she refused to give her name, but introduced herself as a senior police officer.
Maharashtra Chief Minister Prithviraj Chavan has ordered a probe into the incident and has suspended a deputy municipal commissioner and a senior police officer until the investigation is completed, Mr. Malvi said.
The raid on the army post in Serai Naurang town of Khyber Pakhtunkhwa province began around 3:45 a.m. local time and lasted for several hours, said senior police officer Arif Khan Wazir.
"Policing and the fear of law, both, have encouraged reporting and registering of crime, " said Prabhakar, the senior police officer in charge of east Delhi at the time of the attack on the 5-year-old.
Prithviraj Chavan, the top elected official of Maharashtra state, said that a government probe had been ordered, and that a deputy municipal commissioner and a senior police officer had been suspended for dereliction of duty.
In the latest attack in Kirkuk, a bomber was stopped by police from entering the building and detonated an explosives-rigged belt near the entrance, a senior police officer was quoted by AFP news agency as saying.
No arrests have been made so far but police were questioning the men in connection with the rape and assault on the woman and her husband in Datia district of the state, said senior police officer D.
The problem of Sunni-Shia violence was again brought to the fore this week when a senior police officer, Chaudhary Ashraf Marth, the brother-in-law of the interior minister, was shot dead on his way to work in Gujranwala.
But a senior police officer said her father was drunk and "creating nuisance" at a wedding function and that the woman was beaten when she tried to stop the policemen from taking her father to the police station.
Also Wednesday, police raided a home in the northwestern city of Peshawar on a tip that suspected militants were hiding there, ensuing a gunbattle during which two police officers were killed, a senior police officer Liaquat Ali Khan said.
Scotland on Sunday reports that a senior police officer has launched a stinging attack on the criminal justice system, claiming that the number of people in jail is a "national disgrace" and that policies on youth crime are not working.
The chairman of Co-operation Ireland, Peter Sheridan, was once the most senior Catholic police officer in Northern Ireland.
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