Some gunmen, wearing military uniforms, had attacked the People's Hotel in Bayangari area of the town, detonating explosives and shooting people at random.
Briefing newsmen on the arrest made, Lawal said that the suspect was being interrogated and efforts intensified to apprehend his accomplices that fled.
The commissioner said that the number of victims of the attack had risen from 10 dead and 14 injured, to 11 dead and 28 injured.
He urged members of the public to be security conscious and observe happenings within their immediate environment.
"The general public should pay special attention to persons and objects, particularly at motor parks, market places, schools, places of worships, shopping malls, eateries and hotels.
"They should report any suspicious persons or objects within their neighbourhood, to the nearest police station for prompt response, using these numbers – 08151849417 and 07013490795.
Meanwhile the Bauchi State Branch of the Nigerian Red Cross has condemned the attack, describing it as
'barbaric and inhuman'.
The State's Secretary, Malam Mohammed Bashir, told the News Agency of Nigeria (NAN), that they received a call around 9.50 on Friday night, about the attack.
"Immediately I received the call, I and my men rushed to the scene to provide First Aid treatment to the victims.
Afterwards, we, along with the State Emergency Management Agency, police, military and the SSS personnel, evacuated them to the hospital.
"We still carried out search and rescue operation at the scene this morning (Saturday) to ensure that every injured person was evacuated. It was a terrible experience, "Bashir said.